Several hours after departure the two ships described to the right are 340 miles apart. if the ship traveling south traveled 140 miles farther than the other how many miles did they each travel

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Can someone me and do the problem plz so i can understand it more better

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?