Which number sentences show ways to solve the problem?
The 9 members of a conservation club purchased a total of 45 tree saplings. Each member bought the same number of trees to plant in the community. Each tree cost $15. How much did each member pay for the trees?
Choose all answers that are correct.
A.
15 × 9 = 135 and 135 – 75 = 60
B.
3 × 15 = 45 and 45 + 15 = 60
C.
45 ÷ 9 = 5 and 5 × 15 = 75
D.
45 × 15 = 675 and 675 ÷ 9 = 75

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The cost of the trees is 45 × 15 = 675 because 45 trees were purchased at $15 per tree.

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