Can you please explain how to get to the answer for part C and D? I don't understand interpreting inverses with derivatives.

a cow that produced 2430 gallons of milk per year. Answer: M-1(2.43) = W-1(12) + 5 c. [3 points] Complete the following sentence to give a practical interpretation of the equation M'(23) = 0.15. If Falco feeds a cow 22.4 pounds of food per day instead of 23 pounds of food per day, then ... Solution: ... the cow will produce approximately 90 fewer gallons of milk per year. d. [3 points] Circle the one sentence that gives a valid interpretation of the equation (W-1)' (12) = 0.7. i. To increase a sheep's wool production from 12 pounds per year to 12.6 pounds per year, Falco should feed it about 0.42 extra pounds of food per day. ii. To increase a sheep's wool production from 12 pounds per year to 12.1 pounds per year, Falco should feed it approximately 0.7 more pounds of food per day. iii. A sheep that is fed 12.3 pounds of food per day instead of 12 pounds of food per day will produce approximately 0.21 additional pounds of wool per year. iv. When a sheep produces 12 pounds of wool per year, feeding it an extra pound of food per day will cause it to produce about 0.7 additional pounds of wool per year. Winter, 2020 Math 115 Exam 1 Problem 7 (sheep and cows) Solution 2020 Univ. of Michigan Dept. of Mathematics (Creative Commons BY-NC-SA license)