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

### Instruction:
Every day in a week, Siena bookmarks 30 website pages from the research she does on her browser. If Siena has 400 bookmarked pages on her bookmarks library now, how many pages will she have in her bookmarks library at the end of March?

### Response:
Since Siena bookmarks 30 website pages from the research she does on her browser every day, the total number of pages she'd bookmark in March is 31*30 = <<31*30=930>>930
If she already has 400 bookmarked pages in her bookmarks library now, she will have 930+400 = <<400+930=1330>>1330 pages in her bookmarks library at the end of March.
#### 1330