Can someone me answer problem a, b, and c? i'm stuck: /

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

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

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2