Below is an instruction that describes a task. Write a response that appropriately completes the request in Thai. Please answer in Thai.

### Instruction:
There are 30 major league baseball stadiums. Zach has a goal to take his son to see at least one game at each one. He has calculated the average cost for them to travel and see a game will be $900 per stadium. Zach can save $1,500 per year for his baseball stadium trips. How many years will it take Zach to accomplish his goal?

### Response:
 ค่าใช้จ่ายทั้งหมดคือ $900 x 30 สนาม = $<<900*30=27000>>27,000
หารค่าใช้จ่ายทั้งหมดด้วยจำนวนเงินที่แซคออมได้ต่อปี เราจะได้ $27,000 / $1,500/ปี = <<27000/1500=18>>18 ปี