Answer:
The average rate of change in the number of public library visits from 1999 to 2004 is of 0.08 billion visitors per year.
Step-by-step explanation:
To find the average rate of change in the number of public library visits from 1999 to 2004, we subtracted the number of visits in 2004 by the number of visits in 1999, and divide by 2004-1999 = 5.
1.2 billion visitors in 1999
1.6 billion visitors in 2004.
(1.6 - 1.2)/5 = 0.08.
The average rate of change in the number of public library visits from 1999 to 2004 is of 0.08 billion visitors per year.
