A hot tub holds 400 gallons of water. It drains at a rate of 50 gallons per hour. After how many hours will there be 100 gallons left?

What is the lcm of 16 and 40 ? 24 and 40 ?

Select the number of ways in which a line and a circle can intersect

Acircus act has 3 times as many elephants as acrobats. jorge noticed that all together there were 56 legs in the circus ring. how many elephants were in the show?