Question

what is the solution to this system of equations, and what does it mean to the contractor?
the solution (0, 20) tells the contractor the minimum amount that can be charged.
the solution (0, 500) tells the contractor the maximum amount that can be charged.
the solution (25, 20) tells the contractor the number of hours on a job where the hourly rate is the same for both billing options.
the solution (20, 25) tells the contractor the number of hours on a job where the hourly rate is the same for both billing options.

Explanation:

In a system - of - equations context for a contractor's billing options, the solution of the system represents the point where the two billing methods result in the same cost. The x - value often represents the number of hours worked and the y - value represents the cost. The solution in the form (x, y) where x is the number of hours and y is the cost per hour (or total cost in some cases) indicates the situation where both billing options have the same financial outcome for the contractor. Here, the solution (25, 20) means that for 25 hours of work, the hourly rate is the same for both billing options.

Answer:

The solution (25, 20) tells the contractor the number of hours on a job where the hourly rate is the same for both billing options.