Please solve this two questions asap. you don't need to upload steps just upload the final answer to fill the boxes

. [I5 Points] | MY NOTE.' Use ogarithmic differentiation to find the derivative of the function. y = X6 cos(x) . [l6 Points] | MY NOTE.' Brain mass B as a function of body mass M in fish has been modeled by the power function B = 0.007M2/3, where B and M are measured in grams. A model for body mass M (in grams) as a function of body length L (in cm) is M = 0.12L2'53. If, over 10 million years, the average length of a certain species of fish evolved from 16 cm to 22 cm at a constant rate, how fast (in grams per year) was this species' brain mass growing when the average length was 17 cm? (Round your answer to four signicant figures, and use scientific notation.) g/year