Hope you could understand.
If you have any query, feel free to ask.
The answer would be D. 200 - 20d.
This is because the question asks for pages left after reading for "d" (however many) hours. Since the book has 200 books, you'd subtract from that number since it's the "starting number" of pages. If he reads 20 pages per hour, you would multiply those together to get how many he has read, then subtract that number from 200, to get the amount of pages left.
I hope this helps!
I would say Ben because the chance of the numbers being 1,2,3,4,5, 6 would be extremely low
$94,400
Since you are making 18% more, you must find 18% of 80,000 (multiple 80000 by.18) and add it to the original value of 80,000. Alternatively, you can just multiply 80,000 by 1.18
