Tickets to a science museum cost $19.95 each there is a three dollar charge for each order no matter how many tickets are ordered right and equation for each course and dollar of ordering tickets then find the total cost if you order five tickets

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?