How do you solve b to find the set p

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

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

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?