# Question: in 1991 539000 people worked in the air transportation industry...

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in 1991, 539,000 people worked in the air transportation industry. In 2007, the number was 497,000.

A: fin a linear equation giving the number of employees in the air transportation industry in terms of x, the number of years since 1991.

B: assuming the equation remains valid in the future, in what year will there be 440,000 employees of the air transportation industry?