For numbers 21 – 24: Solve the following problems. (20pts) 21. A debt of P450, 000 is due in 5 years and 8 months. If Megan wishes to pay her creditor now at 15% compounded semi-annually, how much would she have to pay? 22. For a sum of P25, 000 to triple itself in 18 years and 6 months, what must be the rate of interest converted semi-annually? 23. At what rate compounded quarterly will P15, 500 accumulate to P24, 850 in 3 years and 8 months. 24. An investment of P12, 232 increased to P33, 435. If invested at 18% compounded quarterly, find the term of investment. ​