Can u plz help me with this :)

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me

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