The yield V (in pounds per acre) for an orchard at age t (in years) is modeled by the function below. V = 7945.5e-0.0458/t At what rate is the yield changing at each of the following times? (Round your answers to two decimal places.). (a) t = 5 years pounds per acre per year (b) t = 10 years pounds per acre per year (c) t = 25 years Submit Answer pounds per acre per year