Answer: The length of the car is 14 and 1/4 (or 14.25 ) feets long.
Step-by-step explanation:
The scale is 1:18.
The lenght of the car is 9 and 1/2 inches.
Then, for the ratio relation, we have that each inch in the model car we have that corresponds to 18 inches in the car, so the length of the car is:
L = (9 +1/2)*18 in = 9.5*18 in = 171 inches.
Now, remember that 1ft = 12 inches, so if we want to write this in feet we must divide this by 12.
L = (171/12) ft = 14.25 ft = (14 + 1/4) ft