2r+6s+4t=16 r+ 3s+2T=8 -5r+2s-3t=1

If 25% of y is 30, what is 60% of y?

Which number completes the inequality? 2/3 < _ < 7/9

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.