In a barrel of peaches, 15 are ripe and ready to eat out of the total barrel. The barrel contains 75% of ripe peaches. How many total peaches are in the barrel?

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.