Answer:
$3.50
Explanation:
Given:
1 sharpener + 2 posters = $28.99
1 sharpener = $21.99
1 poster = ?
Solve:
$21.99 + 2 posters = $28.99
2 posters = $28.99 - $21.99
2 posters = $7
1 poster = $7/ 2 = $3.5
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