What is the value of the expression
(39+52)
?
42

Find the missing dimension extra points

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.

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4