Maria decides to put all of her money into an account with a 20% annual interest rate, compounded continuously. Kareem has twice as much money as Maria, and he decides to put his money into an account with 10% annual interest rate, compounded continuously. Assuming they put their money into their accounts at the same time, whose account will have more money 10 years later?

Angela and Brian have $1000 each and plan to put it into an account earning interest compounded continuously. Bank A offers 2.7% interest. Bank B offers 1.5% interest but will give everyone a $100 bonus at the beginning. (That $100 also gets deposited in the account and earns interest). If Angela puts her money in Bank A and Brian puts his in account B, when will they have the exact same amount in their accounts? Give an exact answer.

Hannah wants to have $ 7500 to help pay for a new deck in 10 years. If she wants to put her money into an account earning 8.5% interest compounded continuously, how much should she invest now, so that she will have $ 7500 in 10 years?

At the beginning of 2012, Jensyn deposited $500 into an account that earns 4% interest compounded continuously. If she makes no other deposits or withdrawals, in what year can she expect to triple her investment? A. 2038 B. 2039 C. 2040 D. 2041