Answer:

To find out how much food is used to feed one bear for a week, we need to divide the total amount of food consumed by the number of bears and the number of weeks:

First, we need to figure out how much food the bears eat in one week. Since there are 4 weeks in a month, we can calculate the amount of food the bears eat in a week by dividing the total amount of food they eat in 4 weeks by 4:

9732.8 pounds ÷ 4 weeks = 2433.2 pounds/week

Next, we divide the amount of food eaten in one week by the number of bears to find out how much food is used to feed one bear per week:

2433.2 pounds/week ÷ 20 bears = 121.66 pounds/week

Therefore, each polar bear at the zoo is fed 121.66 pounds of food per week.