Could i please get assistance on the answer and how, on these 2 questions? plz and thank you!

On the day that his first child was born, Ezio Auditore de Firenze deposited $3,000 into an investment account. The only purpose for the account was to pay for his son's first year of college tuition. Assume that his son, Flavia, started college on his 18^th birthday and his first year tuition payment had to be made that day. The amount needed on that day was S26.000. If that was indeed the amount of money in the account on Flavia's 18^th birthday, what annual rate of return did Ezio earn on his investment account? Kratos has $1, 500 that he will use as a down payment on a car. Assuming that he can afford a payment of $225 per month, how much can Kratos spend on a car (that is, what is the total cost of the car that Kratos can purchase) if the interest rate is 4.75% and if he will finance his purchase with a 6 year, monthly payment loan