Discrete mathematics: suppose that a = {1, 2, 3} and b = {1, 2}. let r be the relation from a to b containing (a, b) if a ? a, b ? b, and a > b. what is the matrix representing r?

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?