I need the answer as soon as possible

Little John wants to save up his Income. Just before his first day of work at the beginning of August, he opens up a bank account that offered a nominal rate of 15% per annum. He began with an initial deposit of P5,000. His beginning salary was a net amount of P20,000 per month. given once at the end of each month. Little John has a special arrangement on his salary - his salary increases 4% each month. Now, Little John doesn't just want to save, he also need to budget his expenses. To cover his expenses, he estimates that he will have to withdraw P16.000 each month. He believes he can budget his expenses to constantly pegged at that amount. Assume that Little John wants to stay with his current employer for the next 5 years. A. What is the effective interest per year? (Place your answer in percentage format and round off to the nearest 2 decimal places) B. What is the present worth of Little John's account? (Round off to the nearest 2 decimal places) C. Determine the equivalent equal monthly cash flows for Little John's salary. (Round off to the nearest 2 decimal places) D. How much money would the account have on the 5th anniversary of his job? (Round off to the nearest 2 decimal places