Hey I need help with these two question please I'm really confused. I will rate

If 200 labor hours were required to produce the 1st unit in a production run and 60 labor hours were required to produce the 7th unit, what was the learning-curve rate during production?

Carly is a recent employee who initially requires 20 minutes to complete a job task. If she experiences an 80% learning rate, how much time will it take her to complete the sixth task? (\\