Answer:
a is proportional to b
a=kb
k is proportionality constant
k =a/b =3/12 =1/4
k=1/4 = a/b=a/18
1/4=a/18
a=18/4 =9/2 =4.5 answer
 
        
             
        
        
        
Answer:
Let the retail cost be x and the wholesale cost be y
Step-by-step explanation:
x = y + 0.50y
x = 1.50y
Therefore the retail cost is 1.50 times the wholesale cost.
 
        
             
        
        
        
Answer:
2,406.16452 cm
Step-by-step explanation:
(1/3)*(17.2*17.2)*24.4
98.61333*24.4
2,406.16452cm
 
        
             
        
        
        
I think yes because the number are not all the same
        
             
        
        
        
Answer: Company C
Step-by-step explanation:
A: $150
B: $160
C: $140
D: $170
So Company C has the best rate.