You bought 155 heifers with an average weight of 475 pounds. You rented 125 acres of pasture at $45 per acre for the heifers. The heifers gain 1.8 pounds per day.

1. What was the cost to rent the pasture?
2. What was the cost per heifer for pasture?
3. After 200 days, what was the average weight of the heifers?
4. What was the cost per pound gain?