Kayla wrote an equation.
William wrote an inequality.
They both have solutions.
Kayla's solution is  x=4 .
William's solution is   x > -2.5 .
Brandon and Alice wrote expressions.  
Those are just numbers, that depend on the value of 'x'.
        
                    
             
        
        
        
7/8 = 21/24
5/12 = 10/24
21/24-10/24 = 11/24
        
             
        
        
        
→ Solutions
⇒ Simplify <span><span><span>4<span>(<span>2a</span>)</span></span>+<span>7<span>(<span>−<span>4b</span></span>)</span></span></span>+<span><span>3c</span><span>(5)</span></span></span><span>⇒ </span><span><span><span><span><span>8a</span>+</span>−<span>28b</span></span>+<span>15<span>c
Answer 
 </span></span></span></span><span>⇒ </span><span>8a−28b</span><span>+</span><span>15c</span>
        
                    
             
        
        
        
I think it's this answer <span>C.A high voltage current can be transformed into a low voltage current.</span>
        
                    
             
        
        
        
Answer:
6
Step-by-step explanation:
sorry if  it wrong