Is the square root of 5x the same as x multiplied by the square root of 5?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

Two airplanes start at the same place and travel in opposite directions, one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?