Is this correct or no

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

How do you write something in scientific notation?

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?