27. A playground is 72 feet wide. How wide would a scale drawing of the playground be if 3 inches represents 12 feet?

28. A scale drawing of a plant cell is 2.4 cm in length. What is the actual length of the cell if the drawing uses a scale of 8 cm : 1 mm?

29. A model car is 12 inches long. How long is the actual car if it was made with a scale factor of 1 in. : 16 in.?

30. A dollhouse was built with a scale factor of 1 in. : 12 in. The dollhouse is 48 inches long. What is the actual length of the house it represents?