In June, a community randomly checked the water consumption of the community for six days (unit: t), and the results were: 30, 34, 32, 37, 28, 365, 438+0, so please estimate the total water consumption of the community in June (30 days) to be about t 。

Answer 960

In the past five years, the statistics of books owned by a school are as follows:

Statistical year

2008

2009

20 10

20 1 1

20 12

Number of books

14 600

15 080

16 930

18 665

2 1 760

According to statistics, there were _ _ _ _ books in this school in 2009. From 2008 to 20 12, the number of books in this school increased by _ _ _ _.

answer

15080 7 160