If Shoyo hinata is thrown threw the air and Tobio Kageyama throws him from 6 ft and Shoyo hinata lands at 20 ft how far did Kageyama throw him?

In exponential growth functions, the base of the exponent must be greater than 1,how would the function change if the base of the exponent were 1? how would the fiction change if the base of the exponent were between 0and 1

Anyone know? will mark brainliest if correct

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.