Gabrielle hires someone to fix her busted pipes under her floor. She is told that she will be charged an initial service fee and $45 per hour. Her bill was $825 after 15 hours of work. Write a linear equation representing the total she has to pay based on the hours worked. Determine the amount of the initial service fee. Create a table of values for at least 5 points of data. Graph the information and be sure to include labels.