What's number is 100,000,000 more than 5,438,724,022

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).