r are increasing and s are increasing, therefore the second graph or third graph. For r = 0 → s = 10.
Therefore your answer is second graph.
we are given with the inequality

Open the parenthesis we get on left side we get

You multiply the length of the model car by the meters from the actual car. It’s easier to convert one unit of measurement to match with the other. I found it easier to convert 18.2 cm to meters which is 0.182 m. Now we multiply 0.182m by 0.3m to get the length of the actual car.
The answer would be 0.0546m. Or if you prefer centimeters, then the answer would be 5.46 cm. Either way is fine.
Hope this helped, please let me know if I was correct. :D
X in less than or equal to 4.5. it is this because 32 is the least number of miles per gallon. 144/32=4.5.