Answer:
135 city blocks is the correct answer
Step-by-step explanation:
9) 6/10
10)14/21
11) 4/5
12)12/40
13)7/12
14)45/80
15) 27/108
16)7/56
17) 6/27
18) 70/112
14. 6.4 blocks
15. 1.78
16. 7.47
See attachment for math work and answer.
I don't have my calculator handy just now. But just looking at that problem, why don't you try +20 and -45 and see if they do the job.