Evaluate 8r-rs8r−rs8, r, minus, r, s when r=6r=6r, equals, 6 and s=5s=5s, equals, 5.

49xy +34y - 72z. determine the degree of the polynomial

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39