0 87 , where rn is the mass of the fetus (in grams) and b Is the brain mass (In grams). Suppose drn the brain mass of a 209 fetus is changing at a rate at 022 g per day Use this to estimate the rate of change of the total mass of the fetus, We '6 The brain mass at a fetus can be estimated using the total mass of the fetus by the function h = 0.22m dm W =D 9 per day (Round to ve decimal places as needed.)