I WILL GIVE BRAINLIEST 5 STARS AND A HEART PLEASE HELP

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building

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?