Chapter 14.3, Problem 40E

Health Expenditures Annual expenditures on health in the United States from 1980 to 2010 could be modeled by

$F\left(t\right)=296{\left(1.08\right)}^t\text{ billion dollars }\left(0\le t\le 30\right).$

( $t=0$ represents1980)²⁵. What was the average annual expenditure over the period shown? (Round your answer to the nearest billion dollars.) [HINT: See Example 2.]