Please help me This question is so hard even the computer can’t get it

Answer:
First box: 18
Second box: 40.5
Third box: 45
Step-by-step explanation:
9 km/m
Answer:
18,40.5,45
Step-by-step explanation:
so i divided 13.5 by 1.5 and go 9
then i basically timed everything
2x9=18
4.5x9=40.5
5x9=45
hopefully i got it right and you understand it
Hope you have a good day :) :)