SAT Math Practice Question #7976 - SATify | SATify

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SAT Math Practice Question #7976 - SATify | SATify

#7976

functions

applications

word problem

quantities

modeling

area

quadratic equations

easy

30 sec

The function $C (n) = 3 n$ gives the total cost, in dollars, for purchasing $n$ items. Which of the following is the best interpretation of $C (10) = 30$ ?

A.

If the number of items is 10, then the total cost is 30 dollars.

B.

If the number of items is 30, then the total cost is 10 dollars.

C.

If the total cost is 10 dollars, then the number of items is 30.

D.

If the total cost is 30 dollars, then the number of items is 10.