Which of these situations represents opposite quantities that combine to make 0?

a tennis ball is thrown 15 feet into the air. the tennis ball falls 15 feet back to the ground.
a football player runs 5 yards and then 5 more yards.
six apples are put in a bowl. three of them are eaten.
a sandwich is cut into two equal pieces.

Pleasseee important quick note: enter your answer and show all the steps that you use to solve this problem in the space provided. use the circle graph shown below to answer the question. a pie chart labeled favorite sports to watch is divided into three portions. football represents 42 percent, baseball represents 33 percent, and soccer represents 25 percent. if 210 people said football was their favorite sport to watch, how many people were surveyed?