Please help me on this question

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

Factor the polynomial by its greatest common monomial factor.