Answer: because djsjs
Step-by-step explanation:
 
        
             
        
        
        
Creo es el la respuesta D
        
                    
             
        
        
        
Answer: −4<x<1
Step-by-step explanation: plz mark brainliest
  
        
             
        
        
        
Answer: option d.
Step-by-step explanation:
 If <em>y </em>varies directly as <em>x</em> and <em>z</em>, the form of the equation is:
 
 Where<em> k</em> is the constant of variation.
 If y=4 when x=6 and z=1 then substitute these values into the expression and solve for <em>k:</em>
 
<em> </em>Substitute the value of <em>k</em>  into the expression. Then, the equation is:
 
 To find the value of <em>y </em>when x=7 and z=4, you must substute these values into the equation. Therefore you obtain:
 
 
 
<em> </em>
 
        
                    
             
        
        
        
Answer:
Ricardo bought it for $98.00
Sandy bought it for $81.66 [5/6×98]
Jennifer bought it for $48.99. [ 3/5×81.66]