Answer:
Glenn is correct.Andy multiplied 675 by 2 two times.
Step-by-step explanation:
We are given that Andy multiplied 675 times 22 and got=2700
Glenn multiplied 675 by 22 and got=14850
We have to find the student which is correct and find the mistake of other student.
When 675 multiplied by 22
Then , 
Therefore, correct answer is 14,850.
Hence, Glenn is correct.

Therefore, Andy makes mistake in calculation. .Andy did multiplied 675 by 2 two times .