Question

Current interest rate: 3%

I already did 2; but i dont know if this info is needed for 3
2) Being a smart financial planner, you want to figure out how many months it will be until your principal is paid down to $10,000.00. Solve for t and show all of your work. Note that t will be negative because the number of months will decrease the principal.
3) Lastly, you decide to keep track of your loan four times a month instead of monthly. Solve for the adjusted interest rate

Answer 1

what formula you are using

Answer 2

1) A(t)=p(1+r/n)^nt
A(t)=39,145(1+ .03/12)^12t

Answer 3

did you solve it?