need help with this please

paper. 1. Determine the present value of 15 equal quarterly payments of P1,200 where the first payment starts at the end of 3 years and 6 months if money is worth 7% compounded quarterly. 2. Find the present value of Jerson's budget pension of P17,150 payable monthly, the first due is at the end of 1 year, and the last at the end of 5 years, if money is worth 6% compounded monthly 3. Vilma borrowed money from a credit cooperative that gave her an option to pay P10, 000 monthly for 1 year. The first payment is due after 6 months. How much is the present value of the borrowed money if the interest rate is 12 % converted monthly? 4. Alma purchased a laptop from Happy Home Credit Inc. The company provides an option for deferred payment. Alma decided to pay after 4 months of purchase. Her monthly payment is computed as P 3500 payable in 12 months. How much is the cash value of the laptop if the interest rate is 8 % convertible monthly? 5. Find the period of deferral of the deferred annuity if the annual payments of P 8,000 for 12 years that will start 5 years from now