2. Zach has an uncle and an older brother who are problem drinkers, and Zach
is determined not to end up like them. However, most of Zach's friends have
started to drink, and they are putting pressure on Zach to join them.

What is the question here? He is encountering peer pressure

You did not show us the image of the burger, but i shall try to answer as best i can.  when purchasing food, always consider the ingredients as well as the person who prepared it. consider if they were hygienic people or not, in case the burger was infected with bacteria. no mortal should place an infected burger into their mouth.