Ordered short sleeve shirts for $23 each and long sleeve for $28.50 each, if the total order amount to $9862.50 for 375 shirts, how many of each were ordered?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.

Find the solution on the interval [0, 2pi)