Nancy is buying a new pair of boots. The store is having a sale and all boots are 20% off. Which expression represents the sale price of the boots where x is the original price of the boots?

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Answer! if you don’t mind, can you explain

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.