Question 13 (3 points) If the rate of change of N is inversely proportional to N(X) where N > 0. If N(0) = 10, and N(2) = 5, Find k, the proportionality constant. Question 23 (3 points) If a population of fruit flies triples every 6 days. What is k, the proportionality constant? Question 24 (3 points) If a population of fruit flies doubles every 3 days. What is k, the proportionality constant