Answer:
8.67 pounds per acre
Step-by-step explanation:
Given that it takes 78 pounds of seed to plant the entire 9-acre field:
In order to find out how much seed are necessary per acre, we could simply divide the total pounds by the total acre:
78 pounds ÷ 9 acre = 8.67 pounds per acre
Therefore, 8.67 pounds of seed are needed for per acre.