Does anyone understand this?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick

Select all of the following expressions that are equal to 2.5.