The pyramid shown has a square base that is 6 feet on each side. it has a surface area of 84 square feet. what is the slant height?

Me because some of question i don’t understand

What is the value of x in the this question ?

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?