Ralph’s shirt company sells t-shirts for $7.50 each with a flat rate of $10 for shipping. Frank’s t-shirt company sells t-shirts for $10 each with free shipping.

A: Write an equation to represent each T-Shirt company.
Ralph's:_______________
Frank's:_______________

B: Solve the system of equations by using the graph.

C: What does the solution mean in the context of the solution?