1：

1：
The number of Internet users in Mexico between 2004 and 2008 can be modeled as
u(t) = 8.02(1.17t) million users
where t is the number of years since 2004.†
(a) On average,what was the rate of change in the number of Internet users in Mexico between 2004 and 2006?(Round your answer to three decimal places.__________million users per year
(b) What was the percentage change in the number of Internet users in Mexico between 2004 and 2006?(Round your answer to three decimal places.) _______%
(c) The population of Mexico in 2008 was 109,955,400.What
percentage of the Mexican population used the Internet in 2008?(Round
your answer to three decimal places.) ______________ %