Answer:The formula for calculating marginal product of labour is output/no of workers 
Explanation:For each day ,you will divide the output by the number of workers to get the MPL 
Day 1 = _ because no production took place 
Day 2 = 60/1=60
Day 3 = 100/2 =50 
Day 4 = 130/3 = 43.3
Day 5 = 150/4 =37.5
Day 6 =160/5 =32 
This in in line with the law of diminishing marginal product of labour .
 
        
                    
             
        
        
        
Answer: C. The stock market now
Explanation:
The Argument target refers to the subject of the discussion in question. The speaker in question is attempting to explain why it would be a good time to buy stocks in the present which concerns the stock market today making it the subject. 
The speaker does this by calling into evidence, the correlations between variables in the past and showing that with one variable ( high unemployment) currently in effect, the other variable (increasing stock prices) which it correlates with therefore has a chance of happening in the present. 
 
        
             
        
        
        
In order for the hitch ball to be secured
properly, the last part which is assembled is nut.
<span>One should
keep in mind that hitch ball and coupler for towing the boat must be of the
same size. The standard size of hitch ball nowadays is about 2 inch. There is a
proper method in order to install the hitch ball properly so that it will be
secured.</span>
 
        
             
        
        
        
Answer: If the United States eliminates its import quotas on Costa Rican sugar, <em><u>consumer surplus for American consumers of sugar products will rise.</u></em>
Here, the United States has finally decided to eliminates its import quotas on Costa Rican sugar. This will further allow the producer in Costa Rica to export more quantity of this commodity. 
 
        
             
        
        
        
Not going to give a full solution, but with every tree they remove, they plant a new tree and they can turn to more Eco-friendly means of manufacturing, such as using non-hazardous materials. 
I hope this helps give you a start on where to begin. Just go with this and research deeper.