Tyee took a taxi from his house to the airport. The taxi company charged a pick-up fee of $4.40 plus $2.25 per mile. The total fare was $33.65, not including the tip. How many miles was the taxi ride?

Let x be the number of miles of the taxi ride.

The total fare can be calculated as:

Total fare = Pick-up fee + (Miles * Rate per mile)

33.65 = 4.40 + 2.25x

Subtract 4.40 from both sides:

29.25 = 2.25x

Divide by 2.25:

x = 13

So, the taxi ride was 13 miles.