The answer would be about
25 bags have zips on them
Answer:
3 customers
Step-by-step explanation:
Rate of arrival (λ) = 15 per hour
Service rate (μ) = 20 per hour
The number of customers in a system given the arrival rate and the mean service rate is given by:

Applying the given data:

The average number of customers in the system is 3 customers.
Answer:
-3
Step-by-step explanation:
1+-3= -2
5-4= 1
-2+1= -3 i think
Im pretty sure the answer is c. commutative