The total amount spent on food is $40 + $15 + $25 = $<<40+15+25=80>>80.

The service charge is $80 x 10/100 = $<<80*10/100=8>>8.

The tip is $80 x 5/100 = $<<80*5/100=4>>4.

So, Mr. Arevalo had to pay $80 + $8 + $4 = $<<80+8+4=92>>92 in all.

Therefore, his change will only be $100 - $92 = $<<100-92=8>>8.

# Answer

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<|im_start|>system
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<|im_start|>user
The Arevalo family went out to dinner. The smoky salmon costs $40, the black burger costs $15, and the chicken katsu costs $25. If the bill includes a 10% service charge and 5% tip, how much change will Mr. Arevalo receive from his $100?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
8
The Arevalo family went out to dinner. The smoky salmon costs $40, the black burger costs $15, and the chicken katsu costs $25. If the bill includes a 10% service charge and 5% tip, how much change will Mr. Arevalo receive from his $100?
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