A. False. The data is quantitative because we're dealing with numeric values instead of things like names, colors, etc.
B. False. The row categories are "students" and "teachers"
C. True. This value (2) is in the "teachers" row and "does not wear glasses" column.
D. False. The value 32 represents the number of students who wear glasses. See row1, column1
E. True. Look at the last value of the "teachers" row. 
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In summary, the answers are: C and E
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Say that your equation is 2x+4=8, x=2
you would plug in the 2 where your x is so, 2(2) +4=8
then you'd solve regularly. 
Hope my answer has helped you!
 
        
             
        
        
        
Answer:
$6 
Step-by-step explanation:
when you multiply $30 by 20% you get 6. 30-6= $24 after the 20% is taken off, but he saved $6.