Answer:
The correct answer is the second option: respond to prices; determines the price. 
So the final statement will be:
The demand and supply curves show how buyers and sellers respond to prices; the interaction of buyers and sellers determines the price. 
Explanation:
To begin with, in the microeconomics theory both the demand and supply curves are economic functions that are represented in the graphic in order to give a better understanding of what is going on in the reality of the economy out there. So that means that they are both determine by the quantity demanded or supplied and the price, the relation between those two components. And regarding that, they both will show how the buyers and sellers respond to prices. Moreover, their interaction will determine the price as explained before. 
 
        
             
        
        
        
Answer:
The correct answer is letter "C": households and noncorporate businesses have left after paying taxes and non-tax payments to the government.
Explanation:
The disposable income is the money left by a person or organization after paying all taxes. Some deductions that can impact the amount of disposable income are deductions on jobs for such things as health insurance. The disposable income is the net amount earned in people's paychecks. for the government, disposable income is non-tax money.
 
        
             
        
        
        
Answer:
1. Households decide to save a larger share of their income. - Aggregate-Demand Curve
If households in the economy started saving more of their money then this would leave less money for consumption which is one of the components of Aggregate Demand. When Consumption decreases so also will Aggregate Demand thereby shifting the Aggregate-Demand Curve to the left. 
2. Florida orange groves suffer a prolonged period of below-freezing temperatures. - Short-run Aggregate Supply Curve
With the Florida Orange Groves suffering from below freezing temperatures, the oranges will not grow as much leading to a poor harvest. This will reduce the supply of oranges in the economy and shift the short-run Aggregate supply curve left. 
3. Increased job opportunities overseas cause many people to leave the country. Both Aggregate-Demand Curve and Short-run Aggregate Supply Curve.
With less people in the Economy, there will be less people spending on goods and services which will cause the Aggregate Demand curve to shift to the left. 
Also with people leaving the country, the labor force will decrease which will mean that less people are available to produce goods and services so the short-run Aggregate supply curve will shift left.
 
        
             
        
        
        
Answer:
Purchases she could have made with $30,000 plus the earnings foregone
Explanation:
Opportunity cost refers to the benefit obtained from the next best alternative.
Here, the opportunity cost of spending a year in the college is the purchases worth of $30,000 that she would have do it and the money income that she would have earned it. 
Opportunity cost can be represented in terms of monetary and non monetary.
 
        
             
        
        
        
Answer:
The correct answer is  C. 7.22 percent
Explanation:
To find the arithmetic risk premium for the 5 year period, the formula is
Average risk premium for the period =  Sum of risk premium for each year /  number of years = ∑ra(i) - rf(i) / n
ra = asset or investment return / 100
rf = risk free return / 100
Where i represents each year.
Sum of risk premium for each year = (0.187 - 0.052) + (0.058 - 0.034) + (0.079 - 0.028) + (0.108 - 0.034) + (0.116 - 0.039) = 0.361
Average risk premium = 0.361 / 5 = 0.0722 = 7.22 / 100 = 7.22 percent