1) Selling a video game on Steam costs a $100 initial fee plus 30 % of all income a developer makes
from the program. By comparison, if I sell on Epic games there is no initial fee and the store
takes 12% of all income. However, Epic is much less popular than Steam, and so I'll have to
spend about $500 on advertising. Assuming I sell a game for $10, how many games would I
have to sell for Epic to be a better deal?