a single man who pays for more than half the cost for the upkeep of a home for himself and another dependent must choose which filing status when filing a federal tax return

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?