Answer:
The answer is $86.80. The lunch service gains $86.80 in 3 1/2 hours if they get $24.80 per hour.
Explanation:
You have to multiply how much they earn per hour, $24.80, by the number of hours they work, 3 1/2. $24.80 times 3 1/2 equals 86.80 so the lunch service earns $86.80 in 3 1/2 hours.
Hope this helps!