1 W A rectangular page in a text (with width x and length y) has an area of 24 in.", top and bottom margins set at , in., and left and right margins set at 1 in. The printable area of the page is the rectangle that lies within the margins. What are the dimensions of the page that maximize the printable area? To maximize the printable area of the page, the horizontal width of the page is and the vertical length is V (Simplify your answers.) in. in10x + 300 The average cost for a company to produce x units of a product is given by the function Am = T. Use A'(x) to estimate the change in average cost as production goes from 100 units to 101 units. The change in average cost is approximately dollars. Certain chemotherapy dosages depend on a patient's surface area. According to the Gehan and George model, S = 0.02235h-42246,,0.51456 , where h is the patient's height in centimeters, w is his or her weight in kilograms, and S is the approximation to his or her surface area in square meters. Joanne is 150 cm tall and weighs 70 kg. Use a differential to estimate how much her surface area changes after her weight decreases by 1 kg. Joanne's surface area changes by approximately (Round to five decimal places as needed.) cm m. cm