Show work and equations please

32. Compute how long it would take you to pay back a credit card loan balance of $5000 if the APR is 14.9% and you make payments of $100+7 per month.

33. Compute the value of a 15-year mortgage that has even monthly payments of $1395+7 dollars per month if the APR is 2.14%.

34. Assume that you want to buy a house that costs $250,000+7 dollars. If you make a 20% downpayment, the APR is 2.77% on a 30-year mortgage. If you make a 10%