Rex takes 3 hours to paint a standard-sized bedroom, whereas his mate Wilbur takes 4 hours to paint the same bedroom. How long will it take for them to paint the room if they work together.

Jan accidently ran 7 minutes longer than he was supposed to. write an expression for the total amount of time jan ran if she was supposed to run m minutes

Which graph shows the solution to the system of linear inequalities? y-4t< 4 y

Luigi is the first person to finish a 5k race and is standing 13 feet beyond the finish line. another runner, mario, is still running the race and has approximately 24 feet before he reaches the finish line. what is the distance between mario and luigi? explain through words, numbers or pictures how you found the answer.