Please help me find the answer

Need on this geometry question. explain how you did it.

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.