In 2006, You Earned $6

Short Answer

In 2006, you earned $6.35 per hour at your job. In 2009, you earned $6.80 per hour at your job. In 2010, you earned $7.10 per hour at your job.
a) What was the average rate of change in the amount you earned per hour between 2006 and 2009?
b) What was the average rate of change in the amount you earned per hour between 2009 and 2010?