Based on data obtained by the U.S. Department of Agriculture, the relationship between
a cow's total output of milk and the amount of grain it is fed is as follows:
of pounds of grain
a. Fill in the blanks in the table.
b. Does this production function exhibit diminishing marginal
returns to the variable input? Yes or No
c. Suppose that the farmer is able to sell raw milk for $.50
per gallon. He pays $2.50 per pound of feed. How much feed will he buy for each cow?