The table shows a proportional relationship. Select the missing y value. X,4,10,12
Y,6,15,?

what is the missing value??

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.