Roxy has 7 flowering plants in her garden. She has twice as many fruiting plants as her flowering plants. On Saturday, she goes to the nursery and buys 3 flowering plants and 2 fruiting plants. On Sunday, she gives away 1 flowering plant and 4 fruiting plants to her neighbor, Ronny.  How many plants are remaining in her garden? Let's think first. Chain of thought:
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Roxy’s flowering plant count is 7. Her fruiting plant count is 7 x 2 = 14. On Saturday, her flowering plant count is 7 + 3 = 10. On Saturday, her fruiting plant count is 14 + 2 = 16. On Sunday, her flowering plant count is 10 - 1 = 9. On Sunday, her fruiting plant count is 16 - 4 = 12. Roxy’s remaining plant count in her garden is 9 + 12 = 21.
Therefore, the answer is 21.
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