Adozen plain hats cost $3.60 what is a unit rate of a hat

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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?