function word problem involving range domain and graph 2

A plumber charges a flat rate of $75 and $30 for each additional hour. The function is y = 30x + 75. Do the following for this problem: 1. , define your variables (x and y)  2. Provide an Input/Output table with 8 values  3. Graph the function with clearly labeled x- and y-axes.4.  Find the domain and range  5.  Write a Conclusion explaining what you did. 
I need each step done separately- 5 steps altogether
 
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