Answer: option D, 200:7
Step-by-step explanation:
1) Data:
length of the car: 2 m
length of the model: 7cm
2) Conversion of units:
2 m = 2 m × 100 cm/m = 200 cm
3) calculation of the ratio:
ratio = length of the car / length of the model = 200 cm / 7 cm = 200 / 7 = 200 : 7