Answer: 16 pounds
Explanation: From the theory 3500 calories/ 1 pound
This gives us total calories 56,000/3500 = 16 pounds.
After a period of 8weeks, it is expected that each subject from the experiment would have gained am additional weight of 16 pounds. Because each subject maintained a calorie excess of 1000 for the period of 8 weeks which the experiment lasted.