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

### Instruction:
Rose is an aspiring artist. She wants a paintbrush that costs $2.40, a set of paints that costs $9.20, and an easel that costs $6.50 so she can do some paintings. Rose already has $7.10. How much more money does Rose need?

### Response:
 ราคารวมของแปรงทาสี, ชุดสี และจองรูปคือ $2.40 + $9.20 + $6.50 = $<<2.4+9.2+6.5=18.10>>18.10
โรสต้องการเงินเพิ่มอีก $18.10 - $7.10 = $<<18.1-7.1=11>>11.