## Intermediate Algebra for College Students (7th Edition)

The average approval rating of Iran, China, and the UK is $-6$.
China's approval rating = $-10$ Iran's approval rating = $-29$ UK's approval rating = $21$ Thus, the average rating of the three countries is: $=\dfrac{-10+(-29)+21}{3} \\=\dfrac{-18}{3} \\=-6$ The average approval rating of Iran, China, and the UK is $-6$.