Answer:
n < 20
Step-by-step explanation:
2n – 1 < 39
Add 1 to each side 
2n – 1+1 < 39+1
2n < 40
Divide each side by 2
2n/2 < 40/2
n < 20
 
        
             
        
        
        
x + x + 3 + x - 8
3x - 5 = 55
3x = 60, x = 20
Since we put Julie as x, we put Janet at x + 3, and the brother is x - 8 (8 years younger)
Julie is 20
Janet (x + 3) = (20 + 3) = 23
Brother(x - 8) = (20 - 8) = 12
 
        
             
        
        
        
Answer:
check the screenshot I attached:
 
        
             
        
        
        
Answer:  11 down and 9 right
<u>Step-by-step explanation:</u>
Slope IS rise over run where the top number of the fraction (numerator) determines the vertical distance --> positive is up, negative is down
and the bottom number of the fraction (denominator) determines the horizontal distance --> positive is right, negative is left.
Given slope = -11/9
the numerator is -11 so the "rise" is  DOWN 11 units
the denominator is 9 so the "run" is RIGHT 9 units
 
        
             
        
        
        
Answer: Brand B is 
Explanation 
(Brand A)24 diapers is 0.29¢ per diaper
(Brand B) 50 diapers is 0.27¢ per diaper