Fishing Charter Sam Stevens and four other friends want to schedule a 6-hour fishing trip...

Fishing Charter Sam Stevens and four other friends want to schedule a 6-hour fishing trip on Lake Ontario with Reel Easy Sport Fishing. The cost for five people is $445. The cost for six people is $510. How much money per person will Sam and each of his friends save if they can find one more friend to go on their fishing trip? Assume that they will split the total cost equally.