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• 1) b, i'm positive a hundred% she finds that the advantage outweighs the cost 2) actual seventy five% it seems proper 3) not certain, guess d 10% no clue 4) false, constructive one hundred% if there are more substitutes that means more competition t…

  in Very simple micro-economic problem, please help? Comment by greg-thompson_60bfb64fab34e June 2021