If martha earns $6.50 per hour for babysitting, how much will she earn in: 1.5 hours? 2.5 hours? 3.5 hours?

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?