Answer: The function representing the scenario is
and the amount earned after 10 hours is $ 390.
Step-by-step explanation: Given that Luigi is an independent contractor who charges a $140 fee plus $25 per hour for each contract with the city.
We are to write a function representing the scenario where y represents the total amount her charges for a project and x represents the number hours worked on a project.
Also, to find the amount earned after 10 hours of work.
The number of hours Luigi work on a project is represented by x.
So, the amount charged by Luigi for a project is given by

Since y represents the total amount charged by Luigi on a project, therefore we must have

Now, if Kuigi work for 10 hours, then we have
x = 10.
Therefore,

Thus, the function representing the scenario is
and the amount earned after 10 hours is $ 390.