Suppose it takes carly 3 hours to read 81 pages in her novel. the equation 81 3 = 243 x can be used to determine the number of hours, x, it will take her to read 243 pages. how many hours will it take carly to read 243 pages? a) 6 hours b) 8 hours c) 9 hours d) 12 hours

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.