1) In 2000, there were approximately 109 million cell phone users in the United States. The number of cell phone users grew to approximately 189 million after one year. a) Write an exponential model that represents the number of cell phone users in the United States, where t represents the number of years after 2000.

[2]

[1]

b) What is the average rate of change?

[1]

c) What would be the number of cell phone users in 2020?

Gigi earned $65 for 5 hours of gardening. she earned $90 for 9 hours of office work. which statement correctly compares gigi’s earning per hour for gardening and office work? she earned $3 more per hour for office work than for gardening. she earned $4 more per hour for office work than for gardening. she earned $3 more per hour for gardening than for office work. she earned $4 more per hour for gardening than for office work.