Please show work on how to do it, I keep trying and not getting any of these answers.

Demand for a product is approximately normal, averaging 8 units per day with a standard deviation of 2 unit per day. Lead time for this product is approximately normal, averaging 10 days with a standard deviation of 3 days.

Question 1: What safety stock level provides a service level of 98.5%? A) 16

B) 54

C) 80

D) 20

Question 2: What reorder point provides a service level of 98.5%?

A) 80

B) 20

C) 134

D) 70