Which of the following is equivalent to the expression 9z-3
A. The difference of 9 times a number Z and 3
B 9 times the difference of a number z and 3
C. 9 less than the product of 3 and a number z
D. the quotient of 9 times a number z and 3
The expression 9z-3 can be written as "9 times a number z minus 3."
Therefore, the correct option is A. The difference of 9 times a number Z and 3.