Which expression is equivelent to (-2)(a+6)
-2a+6
2a+12
-2a-12
-2a+12

Can any one me with the answers to these questions asap?

Me asap! what is the slope of this line? enter your answer in the box.

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?