A A monthly maintenance fee (sometimes called a monthly service fee) is money a bank charges you for working with the company. The fee is usually automatically withdrawn from your account each month. In some cases, you'll pay the fee no matter what. But many banks let you waive the fee if you meet certain requirements.
        
             
        
        
        
Answer:
Please check below for answer. 
Explanation:
Exchange can be defined as the process of providing goods and services by an individual or organization, to meet the needs of customers in exchange for an amount of money. 
Hence, the five conditions that must exist for an exchange to occur are;
1. There must be at least two parties involved.
2. Each party has something that might be of value to the other party.
3. Each party is capable of communication and delivery.
4. Each party is free to accept or reject the offer.
5. Each party believes it is appropriate or desirable to deal with the other party.
 
        
             
        
        
        
Answer:
 the  weighted mean price per share is $38.76
Explanation:
The computation of the weighted mean price per share is given below:
= (200 shares × $37 per share + 270 shares × $36 per share + 490 shares × $41 per share) ÷ (200 shares + 270 shares + 490 shares)
= ($7,400 + $9,720 + $20,090) ÷ (960 shares)
= $37,210 ÷ 960 shares
= $38.76
Hence, the  weighted mean price per share is $38.76
 
        
                    
             
        
        
        
Answer:
double-blind experiment
Explanation:
A double-blind experiment is one in which both the experimenter and the subjects don't have knowledge of which treatment is given to which participant.
The aim of this method is to avoid bias especially from demand characteristics (experimenter expectation) and placebo effect (perception of benefit from an ineffective substance).
Double-blind experiment is used when CureAll develops a new drug to treat restless legs syndrome, and test the drug's efficacy is designed in such a way that neither the experimenter administering the drug or participants knows which drug is administered.
 
        
             
        
        
        
The answer is two and five.