The area of the rectangular roof of a dollhouse is 756 square inches. The length of the roof is 108 inches. How many inches wide is the roof?
Answer: Step-by-step explanation: Since we are given that the railing will begin at a height of 36 inches and follow the slant of the stairs, which decreases 9 vertical inches for every 12 horizontal inches. Thus the rate of change : Rate of change represents the slope of line. Since we are given that