Answer:
she used for two times
so 2.35*2=4.7
her account balance charges for 4.7
 
        
             
        
        
        
The answer for this equation is -2
        
             
        
        
        
Answer:
eflect across y axis means that you replace x with -x
f(-x)=2(-x)=-2x
g(x)=-2x
de graph is the one that passes through (0,0) and (1,-2) and -1,2)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
   1/250 W/m² or 0.004 W/m² or 4 mW/m²
Step-by-step explanation:
The cargo worker is (50 m)/(1 m) = 50 times the reference distance. The intensity varies as the inverse of the square of the distance, so will be ...
   (1/50)²×(10 W/m²) = 10/2500 W/m² = 1/250 W/m²
This might be more conveniently written as 4 mW/m².
 
        
             
        
        
        
D. 75 cm
Step-by-step explanation:
fill in the y with 20.5, so you get 20.5=0.3x-2. Add the 2 to the 20.5 so you get 22.5=0.3x. Divide both by 0.3 to get 75=x. 
sorry if it's a bd explanation, hope this helps :)