Gold Leaf Tech costs $7,200 and prints T-shirts at a rate of $8 per shirt. The quality of these shirts is such that you can charge $20 per shirt. Again, let C(x) represent the total cost in dollars of producing x T-shirts with this technology. Let R(x) represent the total revenue your business takes in from selling x T-shirts with this. The (C(x) = 7,200 + 8x R(x) 20x can be used to represent this situation. system of equations