Answer:
bh/2
Meaning :
base times height, halfed
 
        
                    
             
        
        
        
You should multiply  20 time 8 to get your answer
        
             
        
        
        
5(2x - 4) = 45
10x - 20 = 45
10x = 45 + 20
10x = 65
x = 65/10 reduces to 13/2 or 6 1/2
        
             
        
        
        
C- charge
H- hours
D- diagnostic fee
C= #H(90)+ D
C= 4.6(90)+50
 =414+50
 =$464
C-$800
H-?
D-50
C= #H(90)+50
800=H(90)+50
H(90)=800-50
H(90)=750
H(90)/90=750/90
H=750/90
H= 8.33333333
        
             
        
        
        
Answer:
With base of 3: 
With base of 9: 
Step-by-step explanation:
Use 3 and 9 as the base of the power. 
