For the conventional beef feedlot buying free-range calves, the total acres of the feedlot, the area required to grow corn grain and silage fed, as well as the range land required for cow-calf operations to produce feeder calves to send to the beef feedlot totals acres which is divided by the firm's total 86.25 animal equivalent units (or aeu where 1 aeu = 1,000 lb of animal regardless of species) to get acres/aeu. thus one divided by this acres/aeu means that the conventional beef feedlot buying free-range calves has aeu/acre or lb/acre of animals, which is less than polyface farm. in other words, there is less animal mass per unit land area for the conventional beef system compared to polyface. enter numerical values as they literally appear in the excel file for the first 3 answers. for the 4th answer, type in a whole number not using a decimal.