Answer: Buying $200 stock in AT&T is an example of investment. As in this case the persons income exceeds his consumption and he buys new capital.
Borrowing $1000 from a bank to buy a car to use in business is also an investment as in this case buying a car is like investing in a cash flow producing asset, as the car will be an asset which will help earn money from the pizza business.
Explanation:
Roommate depositing $100 is an example of saving and not investing.
Taking out a mortgage and buying a house is an example of consumption and not investment. 
 
        
             
        
        
        
Answer:
D. underwriter
Explanation:
Based on the information provided within the question it can be said that the individual being described in the question is called an underwriter. Like mentioned in the question this is an individual who guarantees sale of securities and accept the financial risk of liability arising from the guarantee on behalf of the issuer of the securities in question.
 
        
             
        
        
        
Answer:
Sandy Shores Corporation
J's Segment Contribution Margin is:
= $700,000.
Explanation:
a) Data and Calculations:
Sales revenue                                        $1,300,000
Variable operating expenses                    600,000 
Contribution                                             $700,000
Fixed expenses: 
Traceable to J and controllable by J        275,000 
Traceable to J and controllable by others 80,000
Total fixed expenses                                355,000
Net operating income                            $345,000
b) The contribution margin is the difference between total sales revenue and the variable costs.  The idea of segment contribution margin is that it covers the fixed expenses, whether controllable by the segment or not.
 
        
             
        
        
        
Answer:
c. fall in the short run, and fall even more in the long run.
Explanation:
The aggregate demand shifts to the left in recession or contractions, in consequence the level of prices falls. For this analysis we consider the shor-run supply curve with a positive slop. 
As we know, the economy in the long run tends to equilibrium, where the the production level is fixed and equal to the potential of production of the economy. The initial reduction of prices incentives the consumption in the long run, stabilizing with the long run quantites in a minor level of prices.
In the attached image you can observe the process described previously.