For a large sporting event the broadcasters sold 54 ad slots for a total revenue of 157 million. What was the mean price per ad slot .

Use pythagorean's theorem to solve for missing sides of a right triangle.

a^2 + b^2 = c^2

a = 11
b = 17
c = We don't know yet so I'll call it x

11^2 + 17^2 = c^2

121 + 289 = c^2

410 = c^2

c = √410

c = 20.2

Thus, the answer is B.

Hope this helps, and May the Force Be With You!

-Jabba