pat solon

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Questions

The following questions were asked by visitors named pat solon.

The amount spent worldwide in advertising on mobile devices can be estimated by f(x) = 0.4x2 + 0.01x + 0.9, where x is the number of years after 2005 and f(x) is in billions of dollars. b)When will worldwide mobile ad spending reach $41 billion?
13 years ago

Answers

The following answers were posted by visitors named pat solon.