Answer:
option d.
Step-by-step explanation:
<em>Multiply the top equation by 3 and the bottom equation by 4.</em>
 
        
             
        
        
        
13. $9 because 75%=3/4 and 1/4 of 12 is 3, and so you multiply $3 by 3 to get $9
14. Multiply 325 by .2 to get $65.00
15. 15 minutes, because if it rises 2 feet every hour, then it rises 1 foot every hour, and so you divide that by 2 to get 15
Answers:
13. $9
14. $65.00
15. 15 mins
        
             
        
        
        
Answer:
See below 
Step-by-step explanation:
Part A: $125 is constant. 
PART B: Earning depends on hour
 
        
             
        
        
        
The value of f(5) is -37
<em><u>Solution:</u></em>
<em><u>Given function is:</u></em>

We have to find the value of f(5)
To find the value of f(5), we have to substitute x is equal to 5 in given function
Plug in x = 5 in f(x)

Thus value of f(5) is -37