Question

Pre Calculus:

Answer 1

Answer:

(p-200)/30 that is the answer good luck

Answer 2

Let n be a number of friends at the perty. If dinner costs $30 per person, then it cost $30n for all friends.

Robert has booked a banquet hall which costs $200, then his total expenses are $200+30n.

If the final bill is p, then p=200+30n.

Answer: p=200+30n.