In the United States, the average daily time spent watching broadcast television was 22 minutes less in

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In the United States, the average daily time spent watching broadcast television was 22 minutes less in 2018 than in 2008. In 2018, the watching time was 80% of the time spent watching in 2008. 

(a) Write a linear system whose solution gives the time spent watching broadcast television in 2008 and 2018. 

(b) Solve the system and interpret the result.

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