The population, actual and predicted, of Alaskaxyears since the end of 2000 can be modeled as

A(x) = 0.638x²+ 6.671x+ 627.619 thousand people.

(a) What is Alaska's population expected to be at the end of2022? _______people (b) When is Alaska's population expected to reach850,000? (Round your answer to three decimal places.)It will take years after the end of 2000 for the population of Alaska to exceed850,000people. This will occur in (month)_____________