Answer: $ 0.146 per year.
Explanation:
Given: Average price of gas in 2000 = $1.57 per gallon
Average price of gas in 2005 = $2.30 per gallon
The rate of change for each year between 2000 to 2005
=
Hence, the rate of change for each year between 2000 to 2005 is $ 0.146 per year.