Nine and one-half less than four and one-half times a number is greater than 62.5. which of the following represents the solution set of this problem?

The answer is x>16

Nine and one-half less than is    -9 1/2 = -9.5
Four and one-half times a number is      4 1/2 x = 4.5x

Thus, nine and one-half less than four and one-half times a number is greater than 62.5 is 
-9 1/2 + 4 1/2x > 62.5
-9.5 + 4.5x > 62.5
4.5x > 62.5 + 9.5
4.5x > 72
x > 72 / 4.5
x > 16