What is 6 over x-8 - 3x over x squared -5

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Solve the system of equations y= 3/2 - 1, -x+ y =-3

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?