Sylvia has a piece of material that is 668.36 square inches. She marked the material into 4 equal pieces and then cut out one of the pieces. How much of the material remains? Round the answer to the nearest hundredth.

First divide the original area by 4 to find the area of one equal piece: 668.36 ÷ 4 = 167.09 square inches. Since one piece is cut out, three pieces remain: 3 × 167.09 = 501.27 square inches. The material remaining is 501.27 square inches, choice D.

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