The formula for finding the volume of a rectangle is V = lwh, where V is the volume, l is length, w is width, and h is height. If the volume of a rectangle is 108 , the length 4 cm, and the width is 3 cm, what is the height of the rectangle?

5. The length of a rectangle is decreasing at 2 cm/sec, while the width is increasing at 5 cm/sec. At the moment when the length is 15 cm and the width is 20 cm, at what rate is the area of the rectangle changing?

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The length of a rectangle is increasing at a rate of 8 cm/s and its width is increasing at a rate of 3 cm/s. When the length is 20 cm and the width is 10 cm . How fast is the area of rectangle increasing?

The width of a rectangle is 60% shorter than the length of a rectangle. Given that the perimeter of the rectangle is 140cm, find the width of the rectangle.