Trust within the community, not being stupid, and a sense of political (or physical) strength.
According to the chart, the marginal cost of producing the second pie is 0.50 so option 2) is the correct one.
Option 1) “1.00” is incorrect since that is the marginal cost of producing 1 pie
Option 3) “0.25” is also incorrect since that is the marginal cost of producing 3 pies
And finally, option 4) “1.25” is also incorrect since that is the marginal cost of producing 5 pies.
<span>The correct answer is money. In a barter system, you trade goods for other goods. There's no money involved as the middle grounds but rather people trade goods and services for other goods and services. If you're a baker, you give bread to someone who fixes your roof instead of giving him money.</span>
National services
this is the answer