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45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Aline passes through 3,7 and 6,9 what equation represents the line

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.