1. The problem statement, all variables and given/known data Consider an 8-year old child whose body mass is 25 kg and is increasing at a rate of 7 kg/year. Assuming that the mass of the kidneys scales with body mass as Mk=0.021 x Mb^0.85, find the rate at which the mass of the kidneys is increasing (in kg/year). 2. Relevant equations Mk=0.021 x Mb^0.85 3. The attempt at a solution Mk=0.021 x 25^0.85 Mk=0.021 x 32^0.85 Mk=0.021 x 39^0.85 For this problem..I basically used the weights 25kg,32kg,39kg, etc..increasing it by 7kg the Mk (mass of kidneys) keep increasing my .07. Would that be the answer?