Answer:
Heres my guess on it, he can feed around 301 people
Explanation:
I think you would first find out how much it would cost to feed 1 person, which can be done by taking 18.45/3. It will equal around $6.15. then you would take that number and divide by the money he is willing to spend, which is 1850
(1850/6.15)
You get 300.81 which can round to around 301 people