Answer:
5.77
Explanation:
If I'm understanding it correctly, one person only needed to pay 2.15, so let's subtract that from the total of 25.23:
25.23 - 2.15 = 23.08
If the other 4 people ordered the exact same thing, with the exact same price, then wouldn't you just divide that by 4?
23.08 ÷ 4 = 5.77
Always check your work: 5.77 + 5.77 + 5.77 + 5.77 + 2.15 = 25.23
That's what the bill was, so the answer is indeed correct.
(Could simplify that expression to 4(5.77) + 2.15, which still equals 25.23.)