Answer:
Approximately 54.54% of race happened in the first week.
Step-by-step explanation:
We are given the following in the question:
Length of bike race in three weeks = 2,200 miles
Race covered in first week = 1,200 miles
Percentage of race covered in first week =

Thus, approximately 54.54% of race happened in the first week.
Answer: please see the attachments for the solution.
Step-by-step explanation:
3 divided by 8 = 0.375
0.375 x 100 = 37.5%
37.5% is closest to 38%
11.25 seems to be the answer they want, despite the lack of important information.