As a first-time homeowner, there are going to many decisions that you need to make, such as whom to hire for the upkeep of your lawn. You have just received advertisements from 2 companies in your area: 

Greener Lawns and Lawns for Less. Greener Lawns charges an initial fee of $200, plus $50 per hour for labor costs. Lawns for Less charges an initial fee of $300, plus $25 per hour for labor costs. 

1. If h represents the number of labor hours and C represents the cost, write the total cost equation for Greener Lawns. 

2. If h represents the number of labor hours and C represents the cost, write the total cost equation for Lawns for Less. 

3. Solve the system of equations for the total cost of lawn care using the desired technique: substitution, elimination, or graphing. 

4. Document how you came to these conclusions for accuracy.