A soccer club spent $97.50 on trophies from a custom trophy company. The cost of manufacturing x custom trophies is $18.50 for the setup cost, plus $12.50 per trophy. To ship the trophies, the company charges a standard fee of $4 per order plus $2.50 per trophy. How many trophies did the soccer club order? Show your work and explain your reasoning in the space below.