Answer:
Giselle should purchase points to lower the interest rate of the mortage, this will make the cuota decrease.
Step-by-step explanation:
163000 x20% = 32,600
163,000 - 32,600 = 130,040
current mortgage cuota:
![C * (1-(1+r)^(-time) )/(rate) = PV\\](https://img.qammunity.org/2020/formulas/business/college/n8futlqu74w4vm7q3m3fy4bx635ay3txwr.png)
![C * (1-(1+0.0625/12)^(-30*12) )/(0.0625/12) = 130,040\\](https://img.qammunity.org/2020/formulas/business/high-school/a00dtlev3k3bgjxm9potvqsor7vdtck7lv.png)
C= 800.68
800.68/ 2,986 = 0.2681 = 26.81%
this cuota exeeds the desired amount Giselle wants.
her couta can be as much as 2,986 x 25% = 746.5
Giselle should purchase points to lower the interest rate of the mortage, this will make the cuota decrease.