28 = 3x+4x 
x = 4 
3x = 12 
4x = 16 
12:16 = 3:4
        
             
        
        
        
#3 
A(x) = 1000(1+.17)x
because the 17 percent would have to be changed to a decimal form
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
the sum of the angles in a triangle is 180
33+2c+c-18=180
3c=180+18-33
3c=165
c=165/3
c=55
 
        
             
        
        
        
Answer:
D is your answer.
Step-by-step explanation:
if you do 2 numbers to the right you get 3 and now the half would go in between 3 which would make your answer 3 and one half