I think trade? I don't know if you had any answers to this question..?
The answer to this question is:
<span>If Karen gets up early and studies three hours for her test, she is likely to get an A. If she sleeps in, she will probably get a C. What is the opportunity cost of sleeping in?
</span>"<span>three additional hours of study"
Hoped This Helped, </span><span>
Inquisitor
Your Welcome :)</span>
Precedent. This is the usual decision or benchmark set by similar cases in the past.
<span>An emphasis on agriculture and trade resulted in a better life for most
But i`m not sure :)</span>