A-
-$12.58
B-
-$37.58
C-
You need $37.58 to bring it back up to $0 
        
             
        
        
        
Answer:
f(3) = 16
Step-by-step explanation:
f(x)= 7x-5
We want to find the value when x=3
f(3) = 7*3 -5
f(3) = 21-5
f(3) = 16
 
        
                    
             
        
        
        
Answer:
n = -8 
Step-by-step explanation:
 5+n/8=4 
Subtract 5 from each side
 5-5+n/8=4-5
n/8 = -1
Multiply each side by 8
n/8 * 8 = -1 *8
n = -8 
 
        
             
        
        
        
Answer:
y = 0.36x + 4200.00
15100.00 miles.
Step-by-step explanation:
If the yearly cost for driving x miles is given by y dollars then the two ordered pairs to find the linear relation between x and y are (10000,7800) and (20000,11400).
So, the equation will be 

⇒ 
⇒ 
⇒ 
⇒  
 
⇒ y = 0.36x + 4200.00 ........... (1) (Answer) 
Now, for y = $9636.00, from equation (1),
9636 = 0.36x + 4200
⇒ 0.36x = 5436
⇒ x = 15100.00 miles. (Answer)