Cam has a piece of plywood that is 6 7/8 feet wide. he is going to cut shelves from the plywood that are each 1 1/6 feet wide. which is a good estimate for the number of shelves cam can make?

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.