Which of these is the algebraic expression for "4 less than the product of 5 and some number? "
5 − 4p
4 − 5p
5p − 4
4p − 5

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?