Answer:
A) firm offer rule
Explanation:
The firm offer rule states that an offer shall remain open and firm until its expiration date (in this case a fortnight). Stelwire LLC can revoke an offer (anyone can) but in order to do so, it must notify the other party about the revocation. If Stelwire LLC didn't properly revoke the offer before Ralph accepted it, then they are liable for it.
 
        
             
        
        
        
 Answer:
(A) $731,250
Explanation:
The formula to compute the break-even point in sales dollars is shown below:
= (Fixed expenses or Fixed cost) ÷ (Contribution ratio)
where, 
Contribution ratio = Contribution margin ÷ sales 
                              = $208,000 ÷ $650,000
                              = 0.32 or 32%
And, the fixed expense is $234,000
Now put the values to the above formula
So, the value would equal to
= $234,000 ÷ 32%
= $731,250
 
        
             
        
        
        
Answer:
$210
Explanation:
Date    Description   Units  Price  Total	Balance
1-Jun    Opening        15   $12   $180   $180  
5-Jun    Purchase      10      $13     $130          $310  
12-Jun   Purchase      20     $14     $280         $590  
17-Jun   *Sale             -30               -$380        $210  
*Working
Sale
Date          Units   Price     Total
17-Jun       -15 $12   $(180)  
                 -10   $13   $(130)  
                 -5   $14   $(70)  
Total Sale -30           -$380  
So, the correct answer is $210.
 
        
             
        
        
        
Answer:
Option (D) is correct.
Explanation:
Perfect substitute goods are the goods which can be used in place of each other.
Perfect substitutes refers to the goods which are having identical characterstics, features and provide the exactly same level of satisfaction. 
The marginal rate of substitution for these perfect substitute goods remains constant which means that the trading of one good for the another good is at a fixed rate.