The total cost of an order of shirts from a company consists of the cost of each shirt plus a one-time design fee. The cost of each shirt is the same regardless of how many shirts are ordered. The company provides the following examples to customers to help them estimate the total cost of an order of shirts: • 50 shirts cost $349.50

• 500 shirts cost $2370

Using only this information, determine the cost of ordering 200 shirts. Also, write an equation that can be used to determine the cost of ordering any amount of shirts.