Two angles are complementary. if one angle measures 71 degrees, what is the measure of the second angle

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

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?

What is the perimeter of an equilateral triangle if each side is (x+3)?