You need to develop a labor time estimate for a customer order of 30 network installations. It is estimated that the first installation will require 50 labor hours, and a learning curve of 80 percent is expected.

1. How many labor-hours are required for the fifteenth installation?
2. How many labor-hours are required to complete all 30 installations?
3. If the average labor cost is $26 per hour, what is the total labor cost for installing all the networks?