Answer:
330 pages
Explanation:
Okay so let us look at what we actually need. It says that the book is 600 pages long and Sory read 45 percent over 3 days. This is actually all we need because it already tells us how much he read so far, which is 45%. If 45% is already done, how many percent is left?
100% - 45% = 55%
So he has 55% left of the book.
How many pages is that? We figure out how many pages is 55% of 600 pages. We just multiply 55% in fraction form by 600 pages.
![55\% = (55)/(100)\\\\ 600\:pages*(55)/(100)= 330\:pages](https://img.qammunity.org/2020/formulas/mathematics/high-school/qiyc3bg0jt79x83q2t0kk7hrjdqtf2rmv6.png)