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

### Instruction:
Whitney’s mom gave her two $20 bills to spend at the school book fair. Whitney has decided to buy 2 posters, 3 notebooks, and 2 bookmarks. Each poster costs $5, each notebook costs $4, and each bookmark costs $2. How much money, in dollars, will Whitney have left over after the purchase?

### Response:
 ภาพวาดมีราคา 2 × $5 = $<<2*5=10>>10
สมุดจดมีราคา 3 × $4 = $<<3*4=12>>12
ที่คั่นหน้ามีราคา 2 × $2 = $<<2*2=4>>4
ราคารวมทั้งหมดคือ $10 + $12 + $4 = $<<10+12+4=26>>26
วิทนีย์มีเงิน $20 × 2 = $<<20*2=40>>40
วิทนีย์จะเหลือ $40 - $26 = $<<40-26=14>>14