Final answer:
Millicent bikes a total of 16 miles to the park, 28 miles to the beach, and 34 miles back to her house. When we add all these distances, we get a total of 78 miles.
Step-by-step explanation:
The question asks us to calculate the total miles that Millicent bikes during her training which includes three separate distances. To find the total, we simply add these distances together:
- 16 miles to the park
- 28 miles to the beach
- 34 miles back to the house
Adding these up:
16 miles + 28 miles + 34 miles = 78 miles
So, the correct answer is that Millicent bikes a total of 78 miles.