im stuck on this word problem that involves funtions

timer Asked: Jan 23rd, 2015

Question description

In a particular country the of the two largest cities can be modeled by f(x)=200x+25 and g(x)=175x-15, where x is the number of years since 2000 and the population in thousands.

Write and solve the function for the combined population of both cities ?

write and solve the function that shows the difference in the populations of the two cities?

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