Use trigonometric ratios to determine the marked unknown side length in each triangle Help!!!
Explain how to do it or how you found the answer
I have some choices but it’s multiple that can fit and I tried everything but still can’t understand what ratio it is

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?