Answer:
a) y = 50x + 0
b) y = 35x + 300
a) The price is $50 (per person), so you multiply 50 by the number of people going (which is x).
b) The price is $35 dollars (per person), so you multiply 35 by the number of people (which again would be x). There is also an extra cost of $300.
E. 300 6*50=300
F. 510 35*6+300=510