If each of the 4 shelves holds 12 movies, how many movies does betty have on her shelving unit? show your work.

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?

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

Through which points should a line of rotation be placed to create a cylinder with a radius of 3 units