518 + 372
= 500 + 18 + 300 + 72
= 800 + 18 + 72
= 800 + 90
= 890
The answer is B:40 hours. You take 200 divided by 20 to get 10 (the amount of 20 page sections he needs to read) and then multiply 10 by 4 (the speed he reads).
Answer:the first one
Step-by-step explanation:
This is Very good correct
