☁️ Answer ☁️ 
5. IS E (none of these) 
Because I got: 
-125y^5/162x 
6. X = 5/3
Hope it helps. 
Have a nice day noona/hyung. 
 
        
                    
             
        
        
        
Answer:
6 7/8
Step-by-step explanation:
Result in decimals: 6.875
In pic
(Hope this helps can I pls have brainlist (crown) ☺️)
 
        
                    
             
        
        
        
Answer:
48
Step-by-step explanation:
2 x 2 x 2 x 2 = 16 
16 + ?
4 x 4 x 4 = 64 
0.5 x 64 = 32
32 + 16 = 48
 
        
                    
             
        
        
        
(5x+1)² = 7; expand: 25x² + 10x +1 = 7 or 25x² + 10x -6 = 0
Solve this quadratic for x:
x = [-b + √(b² - 4ac)]/2a and x = [-b - √(b² - 4ac)]/2a 
Plug the values and you'll find :
x = (- √7 - 1)/5 (answer C)
x = (+√7 -1)/5  (answer E)
        
                    
             
        
        
        
Answer: 72 gallons
Step-by-step explanation: I added 5 and 3 then multiplied by 9.