What is the slope of (6,0) and (0,8)

How do you answer this question? (step by step)

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

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.