Hello - I am having trouble with these practice problems. Thank you!

Question 3 10 pts raised $600. George and Helen must split the $1200 that they raise by fundraising together. George on his own could have raised $400. Helen on her own could have According to the Shapley value, what is George's fair share of the $1200? $500. $800. O $700. O $400. O $600. Question 4 10 pts raised $600. George and Helen must split the $1200 that they raise by fundraising together. George on his own could have raised $400. Helen on her own could have According to the Shapley value, what is Helen's fair share of the $1200? O $500. $600. $400. $800. O $700