Answer:
N = 675 - 35h
Explanation:
She reads 35 pages per hour.
In 1 hour, she reads 35 * 1 pages.
In 2 hours, she reads 35 * 2 pages.
In h hours, she reads 35 * h, or 35h, pages.
The book has 675 pages. The number of pages left to read is the total number of pages minus the pages she already read.
The number of pages left to read is 675 - 35h.
Equation:
N = 675 - 35h