Tom found that the MAD for his monthly water bills throughout last year was $8.30. Use this information to select the best description of his water bills.

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a

Rosa and lisa ade practicing free throws on the basketball court. so far,rosa has made one-and a-half times as many free throws as lisa.what is the unit ratio of rosa's free throws to lisa's free throws?