A woman takes 3000 on a vacation and spends 150 a day which expression gives the amount she has in dollars after n days

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.

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.

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4