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Mathematics, 21.10.2020 22:01 hopeeast8

Retha is building a rock display for her science project. She put 72 rocks in the first row, 63 rocks in the second row, and 54 rocks in the third row.
If the pattern continues, how many rocks will she use in the sixth row?
OA. 54
OB. 45
O c. 36
O D. 27
O E. 18

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