The number of hours that people in the Philippines spent using the internet from 2000 to 2020 can be modeled by the function f(x) = 26.4x + 54.4 where is the number of years since 2000. a) Find the number of hours that people spent using the internet in 2015. b) When did people spend about 120 hours per year on the internet? (consider a fraction of a year as a whole year)

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