Correct answer is C..................
31-7 because all you have to do is add the question
The equation is 
The solved equation is 11
First, we must add 13 on both sides

The answer to the equation is 
9514 1404 393
Answer:
19
Step-by-step explanation:
After x days, the boy will have read 10x. If this is less than 192, we have ...
10x < 192
x < 192/10
x < 19.2
If x is an integer, the largest possible value x could have is 19.