Need with every problem yes i know they are easy but i have other things to do you guys!

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -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?

Round each of the decimals to the nearest hundredth a. 0.596 b. 4.245 c. 53.6843 d. 17.999