1. tim is not alone. his issues are common for american adults. today, an estimated of the adults in the united states are overweight, with more than falling into the obese range.

69% 35%

Explanation:

The overweight individual has more than the normal weight and shows the high body mass index. This is one of the main reason of the obesity and lack of exercise increases the obesity chance.

According to the recent case study. It has been estimated that nearly 65% of the adults are overweight as they rely more on the fast foods and high calories food. Around 35% of the united states individual fall into the category of the obesity people.

Thus, the answer is 69% 35%.  

answer (c) by causing social withdrawal;