Question

Robert wants to throw a party for his friends. he has booked a banquet hall where he plans to serve dinner. the hall costs $200, and dinner costs $30 per person. if the final bill is p, which function gives the number of friends at the party.

Answer 1

Let’s say t = total amount of friends

p = 200 + 30t

p - 200 = 30t

(p - 200)/30 = t