Answer:
If Kayne is with his two friends, that means there are three people in total.
If there are three people sharing the price of this lunch, each person would have to pay 15.27/3 dollars.
Dividing, we get that each person must pay 5.09 dollars.
Subtracting 5.09 from 20, we have that Kayne will have $14.91 left after paying his share.
Hope this helps!
