Cecilia likes to collect purses every year. She currently has 25 purses and collects 5 purses per year. Write a linear equation for the number of purses she collects.

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount