How would you solve this on ba 2 calculator?

10 points Save Answer Question5 An annuity pays $1,200 at year 0, year 3, year 6, etc. until 18 payments have been made Calculate the accumulated value immediately after the last payment using an annual effective interest rate of 7%. (Round to nearest dollar) 10 points Save Answer Question 6 A loan of $125,000 is repaid by equal installments at the end of each month, for 20 years. Given that the nominal annual rate of interest, convertible semiannually, is 7%, compute the amount of monthly installment. 10 points Save Answer Question 7 An investment of $1,500 is used to make payments of S175 at the end of each year for as long as possible with a smaller payment to be made at the time of the last regular payment. If interest is 8% convertible semiannually, a) find the number of payments b) find the amount of the total final payment