Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
Coral is reading a book that is 600 pages long.  She reads half of it in the first week, and 30 percent of the remaining pages the second week. How many pages must she read the third week in order to finish the book?

### Response:
Week 1:600/2=300 pages
Remaining:600-300=<<600-300=300>>300 pages
Week 2:300(.30)=90 pages
Remaining:300-90=<<300-90=210>>210 pages
Week 3:210 pages
#### 210