One person can do a certain job in twenty-one minutes, and another person can do the same job in twenty-eight minutes. how many minutes will it take them to do the job together?

6 min
12 min
24 min

Polynomial that can be factored as (3x-4)(3x+4)

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0