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            [parent_category] => Array
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                    [slug] => computer-technology
                    [name] => Computer and Technology
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            [subcategories] => Array
                (
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                            [name] => Computer Programming
                            [slug] => computer-programming
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                            [name] => Fortran
                            [slug] => fortran
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            [parent_category] => Array
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                    [slug] => english-reading
                    [name] => English and Reading
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            [subcategories] => Array
                (
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                        (
                            [name] => ACT English
                            [slug] => act-english
                            [id] => 1771
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                    [1] => Array
                        (
                            [name] => SAT Reading
                            [slug] => sat-reading
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            [parent_category] => Array
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                    [slug] => languages
                    [name] => Languages
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            [subcategories] => Array
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                            [name] => English
                            [slug] => english
                            [id] => 1704
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            [parent_category] => Array
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                    [slug] => math
                    [name] => Math
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                            [name] => ACT Math
                            [slug] => act-math
                            [id] => 1741
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                            [slug] => algebra-1
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                            [slug] => algebra-2
                            [id] => 1726
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                            [slug] => calculus
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                        (
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                            [slug] => differential-equations
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                            [slug] => discrete-math
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                            [slug] => elementary-math
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                            [name] => Geometry
                            [slug] => geometry
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                            [slug] => linear-algebra
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                            [slug] => prealgebra
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                            [slug] => precalculus
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                            [slug] => probability
                            [id] => 1735
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                            [name] => SAT Math
                            [slug] => sat-math
                            [id] => 1740
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                    [13] => Array
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                            [name] => Statistics
                            [slug] => statistics
                            [id] => 1736
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                    [14] => Array
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                            [name] => Trigonometry
                            [slug] => trigonometry
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            [parent_category] => Array
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                    [slug] => science
                    [name] => Science
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            [subcategories] => Array
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                            [name] => Physics
                            [slug] => physics
                            [id] => 1748
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            [parent_category] => Array
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                    [slug] => test-prep-exams
                    [name] => Test Prep and Exams
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            [subcategories] => Array
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                        (
                            [name] => ACT Science
                            [slug] => act-science
                            [id] => 1870
                        )

                    [1] => Array
                        (
                            [name] => SAT Writing
                            [slug] => sat-writing
                            [id] => 1871
                        )

                    [2] => Array
                        (
                            [name] => TOEFL
                            [slug] => toefl
                            [id] => 1857
                        )

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)