Answer:
Value of S=$25000.
Explanation:
Value of P= $75000
Value of n= 5 years
Value of AOC= $36000+ $1500k (k=1 to 5)
Since the salvage value would be after 5 years=
S=($75000- $10000*5) = $75000- $50000= $25000.
Value of S=$25000.
 
        
             
        
        
        
D) Which is Defaulting on a loan!
        
             
        
        
        
Answer: Debit Accounts receivable for $600.
Explanation:
The customer had not been billed so that means that they still owe the company. This would make them an accounts receivable so the adjusting entry will have to debit the Accounts Receivable account for $600 to show that it is increasing. 
This amount will be credited to the Accrued revenue account to show that the cash has not yet been received. 
 
        
             
        
        
        
Not sure but I'll take a chance: Probably product existance. If not then product capture
        
                    
             
        
        
        
Answer
The answer and procedures of the exercise are attached in the following archives.
Explanation  
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.  
1. Insurance expense for 6 months = 12,960 x 6/36
= $2,160
Prepaid insurance on December 31, 2021 = 12,960 - 2,160
= $10,800
2.Interest expense for 2 months = 220,000 x 12% x 2/12
= $4,400
Kindly comment if you need further assistance. Thanks