Answer:

Step-by-step explanation:

Formula used = 

 
        
             
        
        
        
B^n / b^m = b^(n - m)
4^5 / 4^2 = 4^(5 - 2) = 4^3
        
             
        
        
        
Answer: hello your question is poorly written attached below is the complete question
answer :
a) 31.5 
b) 24.5 
Step-by-step explanation:
Total world output of good given ( Q ) = qA + qB
world demand ( P ) = 100 - Q 
cost function for country A = cA (qA) = 8qA
cost function of country B = cB(qB) = 3qB
total world emission = 0.5Q
emission per unit good = 0.5 
<u>a) Determine total world emissions when both countries compete in a Cournot fashion</u>
Q = 63 
therefore Total world emission = 0.5 ( Q ) 
                                                     = 0.5 ( 63 ) = 31.5 
attached below is the detailed solution
<u>b) Determine the total world emissions after Country A enacts a carbon tax</u>
Q = 49
Therefore Total world emission after tax = 0.5 ( Q )
                                                                     = 0.5 ( 49 ) = 24.5 
attached below is the detailed solution