Answer:
The height should be 0.5 inch on the scale drawing
Explanation:
The scale factor of the drawing to the actual flag is represented by the ratio 1:18. Which means that 18 inches on the actual flag are equivalent to 1 inch on the scale drawing. If a height of 9 inches is drawn on the actual flag, then:
18 inches on the actual flag / 9 inches on the actual flag = 1 inch on the scale drawing / x inch on the scale drawing
18*x = 9*1
x = 9/18
x = 0.5 inch on the scale drawing