At the grocery store watermelon costs $1.27 per pound. if heather buys a 5.5 lb watermelon, which proportion could she use to find out how much it will cost, c?

If you would like to know how much will the watermelon cost, you can calculate this using the following steps:

$1.27 ... 1 pound
$c = ? ... 5.5 pounds

1.27 * 5.5 = 1 * c
c = 1.27 * 5.5
c = $6.99

The correct result would be: c = $1.27 * 5.5 pounds = $6.99.

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