3) How long will it take an investment to triple, if invested at 7%, compounded monthly? 188.9899898=12t 12t 3=(1.00583) 109 (3) It=15.749 = 12t 10g (2543) 4) Your best friend's mother wants to buy a house. She is considering a house that is $379,000, and can put down $112,000. The bank offers 3.625% compounded monthly What will the monthly payments be: a. On a 15-year loan? b. 30-year loan, if the interest rate goes up to 4.257