In a bank account after t years what do Q(0) and Q(5) tell you

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test