They are said to be proportional.
The answer I got is 17x-70/5
My understanding is that when the power is a negative number, move it to the denominator and change it to positive.
In this case, the base is y, the power is -3
y^(-3)=1/(y^3)
9/16 + 1/2 = 9/16 + 8/16 = 17/16 = 1 1/16
