If a project is expected to be completed in 68 days with a project variance of 21 days, what is the probability that the project will be completed within 50 days

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

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?