solve the following with solution, with the use of the given formula, thankyou

Example 2 Suppose that the balance of a certain credit card is P43,744.53. The credit card company charges 3.5% per month. How much is the total balance owed to the credit card company? Example 3 A buyer purchased an item worth P10,000 with no down payment at 0.85% per month for 24 months. What is the monthly payment? How much is the finance charge? Example 4 A credit card holder purchased an item P6,000 on credit with a monthly interest rate of 3% and 5% minimum monthly payment rate. After 6 months, how much is the remaining balance? win10 11 )