Dear Forum I am having issues with the following word problem any help would be much appreciated

(13) A charter bus company has determined that the cost of providing x people a tour is

A full tour is 60 people. The cost of a ticket is $15.00 plus $0.25 for each unsold ticket. Determine (a) the revenue function, (b) the profit function, (c) the company’s maximum profit, and (d) the number of ticket sales that yields the maximum profit.C(x) = 180.00 + 2.50 x.