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The length of a cube is expanding at the rate of 4 inches per second, whereas the width is expanding at the rate of

The length of a cube is expanding at the rate of 4 inches per second, whereas the width is expanding at the rate of 2 inches per second. The height is the same size as the width and expands at the same rate as the width. How fast is the surface area changing when the width is 7 inches and the length is 11 inches? (12 pts) Given: S=2WH+2LH+2LW

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