you ride your bike around you block twice and the whole neighbor hood once in 20 min you can ride around twice and the whole neighborhood in 70 min how long does it take to ride around the whole neighbor hood?

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?