In 2012, five U.S. Postal stamps cost $2.20. How much did seven stamps cost? (Hint, find the unit rate first) $

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Sindre Sorhus · Answer 1 · 2022-01-19T05:55:53+0000

Answer:

$3.08 for 7 stamps

Explanation:

The unit rate (price per stamp) is:

$2.20

-------------- = $0.44/stamp

5 stamps

Then 7 stamps would cost:

$0.44

------------ * 7 stamps = $3.08 for 7 stamps

1 stamp

In 2012, five U.S. Postal stamps cost $2.20. How much did seven stamps cost? (Hint, find the unit rate first) $

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