Work out the area of a circle when the radius is 7cm given your answer in terms of pie

What basic trigonometric identity would you use to verify that csc x sec x cot x = csc^(2)x

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?

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?