WHO EVER HELPS ME WITH THESE 3 EASY QUESIONS GET 50 POINTS AND BRAINLIEST (HELP)
Rick deposits $3 into his bank account. The following week, he deposits 3 times that amount. Each week after that, he deposits 3 times the amount he did the previous week.
How much does he deposit in all during the first 3 weeks?

1. Write an exponential expression that represents Rick’s deposit in the second week. Explain how you identified the base and the exponent.


(Question 2 has been answered by someone)

3. Do you think Rick can keep up this savings plan for a year? To help you decide, use a calculator to find 315, the amount he would deposit in week 15.

Thank you to anyone who helps me