Answer:
your answer is 3 this is a simple equation type this into to brainly next time it will give you the answer 
 
        
                    
             
        
        
        
The height is 4 cm and the base is 8 cm.
        
                    
             
        
        
        
To find the IQR you first need to write it in numerical order
77, 81, 83, 84, 86, 86, 88, 92
IQR is just Q3 - Q1
Q1 is the middle of the first have, since it has an even set of 4 numbers in the first half you need to take the average of the two middle ones.. which is 82
Q3 done the same process would be 87. 
87 - 82 = 5
IQR = 5
        
             
        
        
        
Answer:
Step-by-step explanation:
Multiply the first term by  , the second term by
, the second term by  , the third term by
, the third term by  .
.
<u>The first term becomes:</u>
<u>The second term becomes:</u>
<u>The third term becomes:</u>
<u>Their sum is:</u>
Correct choice is B