What is number 2??

You have a biased coin that lands heads 10% of the time. You win $1000 every time the coin lands head and lose 50 every time the coin lands tails. You start with $0 it is possible to have ne ative balance 1 you throw the coin 100 times, what is: The maximum balance you could finish with? 2. The minimum balance you could finish with? 3. Your expected end balance? 100,000