See attachment for the answer:
Answer:
you need to find how many pencils the teacher needs for the class
Step-by-step explanation:
Answer:
The number is 623.
Step-by-step explanation:

Answer :
- Total number of people in the room = 18
- Number of people with red hair = 2
- Number of people not with red hair = 18 - 2 = 16
- Probability of picking a person who doesn't have red hair =

Probability = 16/18
Reduce the fraction with 2
Probability = 8/9