Answer:
1. Cost of the old X-ray machine - SC
2. The salary of the head of the Radiology Department - None
3. The salary of the head of the Pediatrics Department - None
4. Cost of the new laser printer - DC
5. Rent on the space occupied by Radiology - None
6. The cost of maintaining the old machine - DC
7. Benefits from a new DNA analyzer - OC
8. Cost of electricity to run the X-ray machines - DC
Where, 
SC - Sunk cost
DC - Differential cost
OC - Opportunity cost
 
        
             
        
        
        
Answer:
c. Jonathan, who segregates tasks and classifies them based on priority needs
Explanation:
Time management entails planning and controlling how much time one spends to undertake assigned tasks. Good time management skills increase one's efficiency and productivity. 
Phone calls should be scheduled during less productive hours. One should delegate tasks where possible to enable timely completion. It is important to undertake one task at a time in order to be efficient. Tasks should be undertaken based on priority. 
Therefore, options a,b and d are incorrect and option c is correct.
 
        
             
        
        
        
Answer: Option (A) is correct.
Explanation:
Correct Option: Normal profits because economic profits will attract new firms and there are no entry restrictions.
In a monopolistically competitive market, firms will earn an economic profit in the short run, so new firms attracted with these profits and decided to enter into the market in the long run.
There is no barriers on entry and exit of the firms in the monopolistically competitive market. When new firms enters into the market, as a result supply of differentiated products increases.
This causes the firm's market demand curve to shift leftwards. It will continue shifting to the left in the firm market demand curve till the point where it is nearly tangent to the average total cost curve.
At this point, firms earns zero normal profit and can earn normal profits in the long run same as a perfectly competitive firm.
 
 
        
             
        
        
        
Answer:
a. make a list of you job preferences and skills. 
 
        
             
        
        
        
Answer;
Based on Supply and demand; If a more people want a commodity, it is in greater demand, thus the price will be higher, and if less people want a commodity, the price will be lower.
Explanation;
In a market the price is determined using the law of demand and supply in that particular market. Demand is the quantity of goods that consumers are willing and able to buy at a given price while supply is the quantity supplied by suppliers at a particular price. 
If a more people want a commodity, it is in greater demand, thus the price will be higher, and if less people want a commodity, the price will be lower.