Briana and her sister molly both want to buy the same model bike. briana needs $73 more. molly needs $65 more. if they combine their money, they will have just enough to buy one bicycle that they could share. what is the cost of the bicycle?

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.