 <translate> Lee and his friend had a total of $10 + $8 = $18. The cost of the food was $6 + $4 + $1 + $1 = $12. The total cost, including tax was $12 + $3 = $15. They should have received $18 - $15 = $3 in total.
The answer: 3. <yor> Owó tí Lee àti ọ̀rẹ́ rẹ̀ ní jẹ́ $10 àti $8 tó jẹ́ $18. Owó oúnjẹ náà jẹ́ dọ́là mẹ́fà àti dọ́là mẹ́rin àti dọ́là kan àti dọ́là kan, ìyẹn sì jẹ́ dọ́là méjìlá. Gbogbo iye tí wọ́n ná, títí kan owó orí jẹ́ $12 + $3 = $15. Ó yẹ kí wọ́n gba $18 - $15 = $3 ní àpapọ̀. Ìdáhùn náà ni pé: 3. 