234483279c20 234483279c20 21-04-2019 Mathematics contestada On a blueprint with a scale of 1 cm = 4ft, the length of the wall is 9 cm. If the scale of the blueprint were 1 cm = 3 ft, what would be the length of the wall? Plz show work and explain your work. A. 12 cm B. 13 cm C. 15 cm D. 18 cm