Answer:
15 miles
Explanation:
To answer this question, we must break up the question. First, we know Lynn paid a total of $66 for the trip. She had to pay $4 per mile, and the flat fee was $6, meaning that no matter how many miles they rode, she had to pay an extra $6 on top of that. So, we can subtract the total cost by the flat fee:
66 - 6 = 60
Then, we divide that number by the amount it costs to ride each mile, which is 4:
60 / 4 = 15
So, Lynn's trip was 15 miles
Hope this helps :)