You Have a Bust-A-Balloon Stand at a Carnival

You have a Bust-a-Balloon stand at a carnival. People pay $3 to throw one dart at balloons. If they miss, you give them a prize worth 10¢. If they burst a balloon, you give them a prize worth $5. Past experience indicates that the probability of a person's missing is 60%.
A) Find the expected value of this carnival game from your point of view.
B) What does your answer in part A mean? (Give a fake answer for A if you did not figure A out.)