Leanna guesses on four multiple choice test questions in a row. each question has 3 possible answers. what is the probability that leanna will guess the answer to the 4th question correctly?

Find the commission on a $590.00 sale if the commission is 15%.

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?

Solve the system of equations. 2x-2y=-4 and x+y=8. show work