If the expression 9y - 5 represents a certain number, which of the following could NOT be the translation?
a. five less than nine times y
b. five less than the sum of 9 and y
c. the difference between 9y and 5
d. the product of nine and y, decreased by 5
Each one of the answer choices would translate to 9y - 5 except for choice b. The word sum is a key word for addition, and 9y means "9 times y."