The relative rate of change of a differentiable function y = f (x) is given by 100 - f'(x) f (X) What is the relative rate of change of a population in x: 20 months of a Gompertz growth function, given by % P (x) = 26290092990'38" O a. 3.53020 0 b. 0.00177 O c. 0.01902 Q d. 0.00465 Q 9. 2.41417 O f. 0.00002 An isotope of the element erbium has a half-life of approximately 12 hours. Initially there are 36.2 grams of the isotope present. What is the rate of decay at t = 7.6 hours? Q a. 16.1764 grams/hour O b. 1.9448 grams/hour O 0. 16.1764 grams/hour Q d. -1.9448 grams/hour 0 e. 4.3480 grams/hour O f. 1.3480 grams/hour