Answer: F(2)=20 means the total cost or the amount if money you spent at the movies after buying a ticket and buying 2 items at the concession stand.
Step-by-step explanation: One ticket is $12 and if each item is $4, then in order to get to a total of $20, then you would need 2 items, since 2 x $4 = $8, and that plus $12 is $20.
I hope this helps!