Answer:
Step-by-step explanation:
Sorry I can't I'm in middle school
Okay so if he serves 18 customers in 42 minutes divide 18 by 42 and you get the amount of customers he serves per min which is 0.42857413 then multiply that by 120 since 2 hours add up to 120 minutes and you get 51.43
ANSWER:
It has been rotated about 180 degrees about the origin.
If it had been rotated about 360 then it has been the same.
HOPE IT HELPS!!!
Well X should have the same value as B, but more information would be needed if you're looking for a more specific answer.