What’s the square Area

Brady has a 20 year fixed rate mortgage for $215,500 with monthly payments of 1,305.89.the annual interest rate is 4%. what is the total cost of the principal and interest for this loan rounded to the nearest dollar

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.