Looking through the table, the rainfall (in inches) goes down by 00.53 inches.
Therefore, you could say that,
"The average rate of change is 00.53. This means that each year the amount of rainfall in inches goes down by 00.53."
14 10/8 is equal to 15 2/8 which cnman simplify down to 15 1/4. So, the simplest you can get is 15 1/4. I hope this helps!
