ive seen many answers to this question already but none with the full work shown, so im still confused.

Your daughter just turned 4 years old. You anticipate she will start University when she turns 18. You would like to have funds in a registered education savings plan (RESP) to fund her education at that time. You anticipate she will spend 6 years in university, and it will cost $20,000 per year. She will need the $20,000 at the start of each school year. When she graduates (debt free) you would also like her to have $40,000 for a down payment on a condo or to travel. If the account promises to pay a fixed interest rate (APR) of 6% per year with monthly compounding, how much money do you have to deposit each quarter to ensure you will have enough when she starts university? Assume you will make the same deposit at the end of each quarter until she starts university