USE RSTUDIO TO SOLVE THIS QUESTION

1 1. Mortgage interest rates can sometimes depend on whether the mortgage term is open or closed. Use the formula: Pi R (1 + i)-n to create a function to calculate a monthly mortgage payment R where i is an interest rate (compounded monthly), P is the original principal, and n is the length of the term (in months). The function should take n, P, and open as arguments. If open==TRUE, then take i = 0.005; otherwise, take i = 0.004