Well, there are 3 feet in a yard so you can just divide the number of yards by 3.
Angle KJL and Angle IJL are supplementary angles
Supplementary angles are angles that add up to 180 degrees
For every minute John Doe reads 250 words
x^3 + 64 = 0
Subtract both sides by 64:
x^3 = -64
x = -4