Why are all these questions so hard I don’t know the answer
        
             
        
        
        
Answer:
a. If two similar properties are for sale, a buyer will purchase the cheaper of the two.
Explanation:
The principle of substitution justifies the idea that the maximum value of a property will be set by the selling price of an equally valuable and desirable substitute property. In this case of property sale, if an area has two similar houses and one is being sold for $912,000 and the other is priced at $105,000, buyers will most likely go for the cheaper one. There is no reason to pay more money if they will be getting a similar property at low cost.
 
        
             
        
        
        
Answer:
In the explanation is a short point of view about the cyber defense and the perimeter oriented posture. 
Explanation:
To begin with, the concept known as "Cibersecurity" refers to the process of protection of computer systems and everything related to them like softwares, hardwares or any electronic data that could be harmful and sensitive for the company. The reason why this type of practice has been rising up the last years is due to the fact that the "internet of things" has been growing up as well and everyday the companies need to protect their information more and more. Moreover, the "perimeter-oriented" security posture implicates the focus on the external networks as being bad and on the other side the internal networks as being good and stable. So the reason why the companies should consider the cyber defense important is because they need to protect all the information that could be use against them. 
 
        
             
        
        
        
Depends on the job I’m pretty sure
        
                    
             
        
        
        
Answer:
Jim will receive 449,999.62
Explanation:
We are going to discount the sales commission from the proceeds of the home, this will be the net cash  received from Jim
                              sales price 478,723
commission 6% of 478,723 = 39723.38
 net realizable                       449,999.62
(sales price - commisions)