Suppose X Grows at a Rate of Percent and Y

Multiple Choice

Suppose x grows at a rate of percent and y grows at a rate of
Percent. If z = y * x, then z grows at ________ percent; if z = x/y, z grows at ________ percent.

A) 7; -17
B) -17; 7
C) 17; -7
D) 60; 42
E) 60; -42