Answer:
     
Step-by-step explanation:
percentage of graduates with loan = 62%
total sample = 50
Number of student in the sample with student loan 
   = (percentage of graduates with loan) x  (total sample)
   = 62% x 50
   = 31
Proportion of student in the sample with student loan = 
 
        
             
        
        
        
I know the answers but I hate simplifying
40) 9y-12
42) -3x+3y-5
        
                    
             
        
        
        
First you need to distribute the exponent into the terms for the first parenthesis.
(-3x²y³)³ = (-3)³ * (x²)³ * (y³)³
= -27 *x⁶ *y⁹
= -27x⁶y⁹
Then you multiply -27x⁶y⁹ by x²y.
You just need to add the exponents of x and y:
-27x⁶⁺²y⁹⁺¹
= -27x⁸y¹⁰
 
        
             
        
        
        
<span>Mean Absolute Deviation (MAD): 6</span>