Will choose brainlies plsss help

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

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?