Write the expression in simplest form (-11/2x+3)-2(-11/4x-5/2)

225/100 of last years cost. write each fraction as a decimal and as a percent

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.