Answer:
36 miles
Explanation:
Maya can bike 9 miles in one hours, meaning that she can bike 27 miles in 3 hours. Since Maya can run 18 miles in 3 hours, and half of 3 is 1.5, she can run 9 miles in 1.5 hours.
Biking Miles + Running Miles= Total Miles
27 + 9= 36 total miles