If f(x) = 2/3x + 9, find f^-1(x)

Me. drysdale earned 906.25 in interest in one year on money that he had deposited in his local bank if the bank paid an interest rate of 6.25% how much money did mr. drysdale deposit

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13