2 to the negative 1 power. When you divide two exponents with the same base, you subtract the two exponents to get your answer. 
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well and 300% increase means you multiply by 3 and then add the original number 
in this case 300% of 25 is 75 and its an increase so 25+75=100
the answer is 100
 
        
             
        
        
        
Answer:
-5y
Step-by-step explanation:
 
        
             
        
        
        
Assuming this economy is closed: Consumption $6.9 trillion; Government Purchases $11.2 trillion; National Saving $2.3 trillion; Investment $2.3 trillion.
<h3>Gross domestic product</h3>
a. Consumption
Private S = ( Y – T – C )
C = Y - T - Private S
C = $12 - $3.6 - $1.5 =$6.9 trillion
b. Government purchases
Public S = ( T - G )           
G = T - Public S                                                        
G = $12 - $0.8
G = $11.2 trillion
c and d. National saving and investment
National savings = Public S + Private S 
National savings = $0.8 + $1.5
National savings =$2.3 trillion
Investment=Savings=$2.3 trillion
Therefore, Consumption $6.9 trillion; Government Purchases $11.2 trillion; National Saving $2.3 trillion; Investment $2.3 trillion.
Learn more about GDP here:brainly.com/question/1383956