The number of miles Alang took a taxi is 10
Alang took a taxi from his house to the airport. The taxi company charged a pick-up fee of $1.80
The fare per mile is $2
The total fare was $21.80, not including the tip.
Let the number of mile is x
total fare = pick up fee + fee per mile
21.80 = 1.80 + 2x
2x = 20
x = 10
Therefore, the number of miles Alang took a taxi is 10
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