The correct option is D.
Marginal cost refers to the amount of money it cost a company to produce one more of a particular product while the marginal benefit refers to the benefit that is obtained as a result of producing that one extra product. Profit is maximized when the marginal cost equals the marginal benefits. 
 
        
                    
             
        
        
        
Answer:
contained by or consisting of a curved line or lines.
Or a curve
Explanation:
Hope this helps
Have a nice day
God loves you
 
        
                    
             
        
        
        
Answer:
→He might get rid of his cough if he doesn't smoke so much.
 
        
             
        
        
        
A couplet is two consecutive lines of poetry that <u>usually rhyme (as .</u> However, Shakespeare often used them at the end of his sonnets <u>to sum up the main points</u>.
For example:
"Blessed are you whose worthiness gives scope,
Being had, to triumph; being lacked, to hope." - Sonnet 52
"You still shall live, such virtue hath my pen,
Where breath most breathes, even in the mouths of men." - Sonnet 81
Considering the afore-mentioned, the appropriate option would be A. 
 
        
                    
             
        
        
        
Answer:
The answer is C. Settlers were hopeful but had many fears.
Explanation:
The line <u>"But their spirits rose when they entered Chesapeake Bay. Landing parties were delighted with the 'fair meddowes ... full of flowers of divers kinds and colors,'"</u> shows they were hopefull and content during the voyage. However, The line <u>"But when they entered the mouth of a broad river, which they called the James in honor of their King, and made their way up into the country, new doubts must have assailed them."</u> and <u>"They knew that savages lived in the dense forests which lined both banks; might not strange wild beasts live there also? Might there not be fatal diseases unknown in Europe?
"</u> shows that they were scared.
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