Ahuman factor expert recommends that there be at least 9 square feet of floor space in a college classroom for every student in the class. find the minimum floor space that 49 students require.
the minimum floor space required is__ft^2

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?