Promenade limousine rental
you and your friends are planning to go to the prom. to rent a limo will cost you $200 and an additional $25
for refreshments for each passenger. you've already confirmed that you and your best friend will be going.
however, your other three friends haven't gotten back to you yet. each friend (including yourself) will bring
along their prom date so the possible number of guests is 4 through 10 (in groups of 2). you need to make a
quick budget to split up the potential costs, so you utilize some of your mathematics know-how.