Given that y varies inversely as x and x varies directly as z, if z is doubled,
then y is
(A) divided by 4
(B) divided by 2
(C) multiplied by 2
(D) multiplied by 4
(E) unchanged

Melissa is purchasing a $160,000 home and her bank is offering her a 30-year mortgage at a 4.9% interest rate. in order to lower her monthly payment, melissa will make a 20% down payment and will purchase 3 points. what will her monthly mortgage payment be? a. $645.98 b. $650.46 c. $662.93 d. $606.69