Find the mean proportion between 28 and 63.​

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Explain why the factor 1.5 is broke. into two numbers in the model.