Answer:
Yes they are sustainable
Explanation:
The strategies mentioned in the question were laid out my Michael Porter and therefore, we can look analyse his model to understand whether these strategies are sustainable or not.
Porter has categorized strategies into 3 broad categories: Cost Leadership, Differentiation, and Focus strategies (all three are known as "Generic Strategies). Focus strategy is branched out into two sub-segments known as Cost Focus and Differentiation Focus.
Now, the question has already clarified that the strategies in question are both focus strategies. So lets understand what each entails.
Differentiation Focus: A strategy in which the company aims to gain market leadership in a focused market (a specific market) through strategic differentiaion. This strategic differentiaion involves offering a specialized service or a unique product in a niche market. Cost focus strategy is similar in the sense is that that the aim is to offer highly low cost products/services to a niche market. Because of the focus on these niche markets, company's develop a strong understansing of the consumer thereby developing strong brand loyalty with that particular customer base. The key ingredient, again, is that the competitive advantage is being harnessed by focusing just on a particular niche market. Another key component is that the companies using this strategy rely on the consumers in the target market having different needs, tastes, and requirements than consumers in other segments in the industry.
Now, these strategies by desig were put forth my Porter has being sustainable. Hence the term "generic strategies" in that they can be broadly used to create and sustain performance. The focus strategies as defined above are sustainable since they harness the power of having priority knowledge of their target market to provide appropriate services and products. The high brand loyalty and knowledge of consumers give them an edge over competitors (competitive rivalry). Supplier power depends on the nature of products being offered therefore it cant be taken into consideration. Buyer power can be managed since you are prodiving unique service offerings to unique customers. Threat of substitution depends on the product and service offering. Threat of new entry by larger player exists, but due to the focus that the company had in the target market, barriers to entry (long strong brand loyalty) can be developed.
 
        
             
        
        
        
A wiki is probably the best of the choices presented, because it's editable by everyone.  But wikis get out of control pretty quickly if nobody is assigned to be the wiki-keeper.
Forum software can actually be the best approach, because forums can be divided into different topics for different projects, and posts in chronological order (with attachments) help everybody keep track of what happened when.
        
                    
             
        
        
        
Answer:
The cost of the work transferred-out during May is $18,630
Explanation:
For computing the cost of work transferred, first we have to compute the conversion cost per unit and material cost per unit
The conversion cost per uni = Conversion cost ÷ (transferred units + work in progress)
= $11,160 ÷ (2,700 + 300 × 30%)
= $11,160 ÷ (2,700 + 90)
= $11,160 ÷ 2,790
= $4 per unit
Now, material cost per unit = Material cost ÷ (transferred units + work in progress)
= $8,700 ÷ (2,700+300)
= $8700 ÷ 3,000
= $2.9 per unit
So, total cost of the work transferred is equals to 
= Transferred units × conversion cost per unit + transferred units × material cost per unit 
= 2,700 × $4 + 2,700 × $2.9
= $10,800 + $7,830
= $18,630
Hence, the cost of the work transferred-out during May is $18,630
 
        
             
        
        
        
 Answer: PLEASE  see below for answer
Explanation: An excludable good is referred to as a private good which restrict people from using them while a non excludable goods are public goods that do not place restriction an so  people can access them eg park .
Also, Non-rivalrous goods are those goods that even though consumed by the people will not cause shortage of the  availability of the same goods to others.   A rivalrous good is the opposite as it causes shortage in availability  to others when used.
National Defence----Non excludable and Non Rivalrous
Pay-Per-View cable television---Excludable and NonRivalrous
a Hot Pocket sandwich--- Excludable and Rivalrous
private classroom education--- Excludable and Rivalrous
pajamas--- Excludable and Rivalrous
a unicycle ---- Excludable and Rivalrous
 
        
             
        
        
        
Answer:
the labor demand curve is downsloping  is the correct option is  
Labor unions are restrained in their wage demands because the labor demand curve is downsloping