11×11×11=1331
12×12×12=1728
13×13×13=2197
14×14×14=2744
15×15×15=3375
16×16×16=4096
17×17×17=4913
18×18×18=5832
This is a pythagorean theorem problem
When solving for the sides of a right triangle... a^2 + b^2 = c^2
Therefore, 7^2 + b^2 = 25^2
b^2 = 25^2 - 7^2 = 576
b = sqrt(576) = 24
Answer: A 24
C, it has the ratio of $9 per hour which is a greater ration than all the other options.
Hope this helps!
