Answer:
 
 
Step-by-step explanation:
----------------------------------------
Let's find the surface area of the pink rectangular prism first.




The surface area for the pink rectangular prism is  
  .
.
-------------------->>>>>
Now, let's find the surface area of the green rectangular prism.




The surface area for the green rectangular prism is 144  .
.
-------------------->>>>>
Now let's add the surface area of both rectangular prisms to find the surface area of the composite figure.

 
 
----------------------------------------
Hope this is helpful.
 
        
                    
             
        
        
        
Answer:
J. -13-18
Step-by-step explanation:
J will give the value -31
 
        
             
        
        
        
You formatted the equation wrong for the setting your calculus on i would recommend using a Ti-34
        
             
        
        
        
From the graph, it is obvious that the trend is decreasing from 100 on day 2, to 1 on day 10. So, the answer could either be A or C. The question would be how fast is it decreasing? To illustrate this, let's find the difference of consecutive data:
100 - 26 = 74
26 - 6 = 20
6 - 2=4
2-1=1
It must not be an additive rate because there is no common difference. Let's illustrate if the trend is in multiplicative rate:
100/26 = 3.85
26/6 = 4.33
6/2 = 3
2/1 = 2
More or less, they have a common divider. Hence, the decreasing rate is in multiplicative rate. The answer is A.