Panpan purchased a car. She paid ₱250,000.00 as down payment, and ₱5,500.00 payable at the beginning of each month for 48 months. Money is worth 12% compounded monthly. Compute the periodic rate, how...

Panpan purchased a car. She paid ₱250,000.00 as down payment, and ₱5,500.00 payable at the beginning of each month for 48 months. Money is worth 12% compounded monthly.Compute the periodic rate, how many payments should be made? and what is the equivalent cash price of the car?