What is the unit value of the 6 in 216

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?

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?