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Please help with number 9 and 10

Please help with number 9 and 10-example-1
User Eric MJ
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1 Answer

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Number 9 is 15 and number 10 is 30. There was 9 rectangles on number 9. 45 divided by 9 is 5, so each rectangle is worth 5. 3x5=15.
User Beni
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