Pls help me answer this quickly

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?

Is there an x intercept in the equation 60*1.15^x

Solving algebraic equations 2m+3=11