Pls help (if this is the right picture)

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

How can (square root of 25) ^2 be rewritten?

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?