Answer:
28 shorts, and 279 t-shirts.
Explanation:
Dots is selling T-shirts for $2 a piece and has sold 279 of them that is $558.
279 shirts x 2 (dollars)= $558.
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We need to see how many shorts were sold, so we are going to take the money we know didn't come from shorts and subtract it from their total sales.
670-558= 112
$112 is left, divide 112 by 4 to see how many shorts were sold.
112/4= 28 shorts.
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28 shorts and 279 t-shirts.