C. 10/x+8
The easy way to do it would be to take it one step at a time.
Answer:
47
Step-by-step explanation:
this is due to when 286 is divided by 61 it gets 40 and the remainder gets you 7 as a result it is 47
September : 12
october: 18
november : 16
together in sept. and oct. = 12+18 = 30
number of books he read more in sept. and oct. then just nov.= 30 - 16 = 14
in short, the answer is 14 books.
hope it helps you!
