Caroline needs to find 15% of $128, but she doesn’t have a calculator. thoroughly explain how she can do this mentally, detailing each step. give the final answer

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute

Aculinary club earns $1360 from a dinner service. they sold 45 adult meals and 80 student meals. an adult meal costs twice as much as a student meal. what is the cost of an adult meal?