It takes 48 minutes for 7 people to paint 7 walls how many minutes would it take for 20 people to paint 20 walls

Jose is going to use a random number generator 500500 times. each time he uses it, he will get a 1, 2, 3,1,2,3, or 44.

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.

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5