A firm has a contract to make 10 specialty lenses for night vision equipment. The first one took 140 hours. Learning is expected at the 80% rate. How long will it take to finish all 10 units? (round it to the nearest whole number) Your Answer: Your Answer Question 17 ( 2 points) A firm has a contract to make 10 specialty lenses for night vision equipment. The first one took 70 hours. Learning is expected at the 90% rate. How long will it take to finish the 10th unit? (round it to the nearest whole number) Your Answer: Your Answer Question 18 ( 2 points) The first unit took 100 hours and the fourth unit took 15 hours to complete. What is the learning curve (\%)? (round it to the nearest whole number) Your