Answer:
Kylie is incorect the aswer is supposed to be 32
Step-by-step explanation:
 
        
             
        
        
        
Yes because 3*5 = 15
Factors multiply to get the product.
 
        
                    
             
        
        
        
Answer:
  hrs/house
hrs/house 
Step-by-step explanation:
 Rate is the amount of work done per unit of time;
   Let Cara's rate  = C
    Let Jena's rate  = J 
         C + J  = 4  ------ i 
Now;
   Working alone:
              Jena takes twice as long as Cara
                           J  = 2C  ---- i 
How long does it take Cara to clean a house alone 
            C + J  = 4 
              J = 2C 
         C + 2C = 4 
            3C = 4 
               C =  hrs/house
hrs/house 
 
        
             
        
        
        
-1 = (x-1)/3
(multiply both sides by 3)
-3 = x-1
(add 1 on both sides)
x=-2