Mrs. Branso pays $21.33 for 4 1/2 pounds of cheese. what is the cost of the cheese per pound

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

How many $20 bills do you need to have to make $280

Atorch and a battery cost 2.50 altogether. the torch costs 1.50 more than the battery. what fraction of the total price is the torch? give your answer in its simplest form.