as tiers increases, sales increases
since there seems to be no assemtote (horizontal or vertical), As the number of cake tiers increases without bound, the total monthly sales increase without bound.
answer is 3rd option
 
        
                    
             
        
        
        
If they are proportional, then y/x should always be the same. 
So 9/2= 4.5
We need to find the y value at x=3 to make y/x equal 4.5
4.5 = y/3
y = 4.5*3 = 13.5
        
             
        
        
        
Since he bought 2 model cars for $8.95 each, he bought both for $17.90. Now, subtract this from the total cost to get the cost of paint. $23.65-$17.90=$5.75. So, the total costs of paints are $5.75. Hope this helped!
        
             
        
        
        
Answer:
71
Step-by-step explanation:
vertical sides  are congruent 
x+30=101 
x=71