Pls pls, pls help me with my math

How to determine whether two known pairs of points are on the same line.

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

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.