Brain weight B as a function of body weight Win fish has been modeled by the power function B =0.007W2/3, where B and W aremeasured in grams. A model for body weight as a function of bodylength L (measured in centimeters) is W =0.12L2.53. If, over 10 million years, theaverage length of a certain species of fish evolved from 13 cm to21 cm at a constant rate, how fast was this species' brain growingwhen the average length was 18 cm? (Round your answer in g/yr tofour significant figures.)
