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Sorry I did the first part but can u pls do part b and c thanks

Sorry I did the first part but can u pls do part b and c thanks-example-1

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Part B: It would be 8x+24. You get 4x+12 and double(times 2) it, it would be 8x+24.
Part C: Yes, because the relationship between the ratio would always be proportional.
User Dima Knivets
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