Anna is selling tickets to a carnival. The function f(x) = 0.5x represents the amount of money in dollars Anna earns per ticket, where x is the number of tickets she sells. The function g(x) = 6x represents the number of tickets Anna sells per hour, where x is the number of hours she works.

Find f(g(x)), and explain its meaning.

f(g(x)) = 12x, which represents the money Anna made in dollars per hour
f(g(x)) = 12x, which represents the number of tickets Anna sold per hour
f(g(x)) = 3x, which represents the money Anna made in dollars per hour
f(g(x)) = 3x, which represents the number of tickets Anna sold per hour