The first order was for 35 T-shirts and it cost $337.50. The second order was for 56 T-shirts and it cost $516. The prices include a standard shipping and handling charge. What is the cost per shirt? What is the shipping and handling charge? Write a linear equation to represent the situation.

I interpreted the question to have one shipping cost, independent of number of shirts ordered:

35c + s = 337.50

56c + s = 516

In this case, the cost per shirt (c) and shipping costs (s) can be found.