Highest common factor of 24 and 56 is 8, 24+56 is 80, 80 over 8 is 10 rows
Answer:
I think its D.
Step-by-step explanation:
There is no answer choice, but --
25 students with 5 students absent = 20 students on this day
100 markers to be shared with 20 students
Each student gets 5 markers (100/20)
So the equation for mean is (sum of all the numbers in the set)/(how many numbers there are). In this case, our numbers are {2,3,4,6,11,12,14,23} and there are 8 numbers total. Our equation will look like this: 
Firstly, add everything on the numerator: 
Next, divide, and your answer will be 9.37500, or approximately 9.38.