Dylan needed to get his computer fixed. He took it to the repair store. The technician at the store worked on the computer for 5.5 hours and charged him $71 for parts. The total was $648.50. What was the cost of labor, per hour?

First we need to find the cost of labor. We know that the total cost was $648.50 and the cost of parts was $71, so the cost of labor would be the difference between the total cost and the cost of parts:

Cost of labor = Total cost - Cost of parts
Cost of labor = $648.50 - $71
Cost of labor = $577.50

Next, we need to find the cost of labor per hour. We know that the technician worked on the computer for 5.5 hours, so we can divide the cost of labor by the number of hours:

Cost of labor per hour = Cost of labor / Number of hours
Cost of labor per hour = $577.50 / 5.5
Cost of labor per hour = $105

Therefore, the cost of labor per hour was $105.