James spent $(2y2 + 6). He bought notebooks that each cost $(y2 - 1). The expression to find the number of notebooks James bought is . If y = 3, James bought

Question

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Answer 1

For y = 3

 

(2y² + 6) = 2(3)² + 6, or 18 + 6, or 24

 

y² - 1 = (3)² = 1, or 9 - 1, or 8

 

He spent $24 on notebooks that cost $8 each. He bought 24/8 or 3 notebooks.