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at a yard sale you find 5 paperback books by your favorite author. each book is $0.75. write a rule for the amount (in dollars) you spend as a function of the number of books you buy.

Respuesta :

texaschic101
y = 0.75x....where y is the total cost and x is the number of books

or it could be f(x) = 0.75x...in function notation

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