Write an English phrase that would translate into the following mathematical expression.
5z -7
Which of the following is equivalent to the expression 5z-7?
A. The quotient of 5 times a number z and 7
B. 7 less than the product of 5 and a number z
C. 5 less than the product of 7 and a number z
D. 5 times the difference of a number z and 7