If a ball is thrown into the air with a velocity of 45 ft/s, its height (in feet) after t seconds is given by y = 45t - 16t2. Find the velocity when t = 2.

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?

Factor the polynomial, if possible. if the polynomial cannot be factored, write prime. 9n^3 + 27n^2 – 25n – 75

An ant travels at a constant rate of 30cm every 2 minutes. at what speed does the ant travel per minute