Samuel orders four dvds from an online music store each dvd coasts 9.10he has a 25 percent discount code and sales tax is 7 percent round sales tax amounts to the nearest cent what is the total cost of his order

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?