57. The growth of a colony of bacteria is given by: In M Mo where r represents the growth rate, My represents the initial population, and M represents the population after + hours. Find the growth rate, r to the nearest four decimal places if the mass of the initial population was 3.0 x 10 g. and the mass of the population after 4 hours was 2.4 x 10* g. a. 4.5733 C. 1.4152 b. 1.0955 d. 0.0558 following information to answer questions 58-59 The fictional drug, Figaropgram,, is prescribed to patients to treat hypothetical nephritis. The amount prescribed is 3.5 mg of Figaropgram for every kilogram the patient weights, minus 30 mg per day. Give an equation to show the relationship between the amount of Figaropgram in mg (y) and the patient's weight in kg (x). a. y = 3.5x - 30 C. y = 30x+ 3.5 b. y = 3.5x d. y = 3.5x+ 30 About how many milligrams would a patient who weighs 52 kg need? Round to the nearest 10 mg. a. 180 mg c. 150 mg b. 50 mg d. 210 mg