Answer:
5n+5
Step-by-step explanation:
5(n+3)-10
5n+15-10
5n+5
 
        
             
        
        
        
45% is the answer, since u have to multiply the 3% by 15
        
                    
             
        
        
        
Answer:
66,100 in all.
Step-by-step explanation:
 
        
                    
             
        
        
        
A(b)  = 12(b + 9) / 2
12(b + 9) = 2 A(b)
b + 9 = 2 A(b) / 12  = A(b) / 6
b = A(b)
      ----- - 9
        6
B(a)   =  a              
             --  -  9
              6
It's C
        
                    
             
        
        
        
Let the number of orders Eric served be x
Eric = x
Mai =  x+ 8         [Mai served 8 more than Eric]
Dean = 3x           [Dean served 3 times as many as Eric]
Given that the total is 103
x + x + 8 + 3x = 103  
5x + 8 = 103
5x = 103 - 8
5x = 95
x = 19
x = 19
x + 8 = 19 + 8 = 27
3x = 19 x 3 = 57
Eric served 19
Mai served 27
Dean served 57