19. The quadratic function f(x) = -16x + 11x models the height, in feet, of a flying fish above the water after x seconds. How long is the flying fish out of the water?​

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?