Please answer this 2 problem clearly and round off the answer to two decimal places

4. At what nominal rate compounded quarterly will payments of P800 at the end of each 3 months for 5 years discharge all liability for a debtor who borrows P14,000 today? 5. A man started depositing P300 at the end of each 6 months. His first deposit was on April 15, 1975. When will his deposits amount to P7,110.48 if money is worth 31/2% compounded semi-annually