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Mathematics 20 Online
Twoods100:

Mark bought gifts for his friends, and each gift cost $9. Let y represent the total cost and x represent the number of gifts. Write an equation to represent the proportional relationship between the total cost and the number of gifts he bought.

Mercury:

1 gift costs $9 2 gifts costs 2*9 = $18 and so on so we can conclude that total cost = 9*(total # of gifts) can you try representing this with the appropriate numbers and variables?

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