Evaluate ( r - s) 3 + r 2 if r=8 s=5

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

Mr. thompson is on a diet. he currently weighs 260 pounds. he loses 4 pounds per month. what part of the story makes the relationship not proportional?

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in