<u>The three important tools of Federal Reserve's monetary policies are as follows:</u>
- open market operations
- the discount rate
- reserve requirements.
<u>Step-by-step explanation:</u>
The monetary policies of the United States's central bank, Federal Reserve are the acts of the entity to influence money and raise the country's economy. These policies also helps in looking over the aspects of how the money and credits draw affects on credit rates and the overall performance of the U.S. Economy.
The three prime tools of the Federal reserve's monetary policies are the Open Market Operations, Discount Rates and the Reserve Requirements.
<u>Open Market operations</u>
This involves in purchase and selling process of government securities. The primary dealer with which the Reserve deals compete on the basis of prices and thus the dealer gets decided with whom the reserve deal for the day.
<u>Discount Rates</u>
This is the discount rate charged to depository institutions for short term loans by the Federal Reserve.
<u>Reserve Requirements</u>
This is the money or deposit amount the Reserve Bank must sustain in its vault or depository.
 
        
             
        
        
        
We are going to rewrite both numbers:
 (4.2 × 10 ^ 6) = 4200000
 (2.25 × 10 ^ 5) = 225000
 Adding we have:
 4200000 + 225000 = 4425000
 Rewriting in exponential notation we have:
 4425000 = 4,425 * 10 ^ 6
 Answer:
 (4.2 × 10 ^ 6) + (2.25 × 10 ^ 5) is equal to:
 4,425 * 10 ^ 6
        
             
        
        
        
3•2•7=42•2=84
12•10•7=840
84+840=924in^3
        
                    
             
        
        
        
The price of fan was 20 Dollars 55 cents last week.
Step-by-step explanation:
Let, 
The price last week = x
As the price is 27% lower than last week, therefore
(100%-27%) * Price last week = $15
73% * x = 15
Solving the percentage;

The price of fan was 20 Dollars 55 cents last week.
Keywords: Percentage, multiplication.
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