Acompany produces plates with area a=πr^2, where r is the radius of the plate. find the inverse by solving for r without switching the variables. the inverse is r= explain your reasoning.

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.