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

### Instruction:
Michael has a chicken farm. His chickens increase in number by 150 chickens annually. If the number of chickens on his farm now is 550, how many will he have after 9 years?

### Response:
 ในอีก 9 ปี จำนวนไก่ใหม่ที่จะเพิ่มเข้ามาคือ 150 * 9 = <<150*9=1350>>1350
จำนวนไก่ทั้งหมดหลังจาก 9 ปีคือ 550 + 1350 = <<550+1350=1900>>1900