Question: 4. A rectangle currently has a width of 3 cm and an area 30 cm?. The rectangle is increasing in area at a rate of

4. A rectangle currently has a width of 3 cm and an area 30 cm?. The rectangle is increasing in area at a rate of 2 cm3/h and decreasing in width at a rate of 0.5 cm/h. What is the rate of change of its length? A) -1 cm/h B) 1 cm/h C) -7/3 cm/h D) 7/3 cm/h

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