Jovanna gives a walking tour of a popular tourist city to one person for $43. To increase her business, she would lower the price by $2 per person for each additional person. Write the cost per person (c) as a function of the number of people (n) on the tour. How much does she make for a tour with 9 people?
A) Write the cost per person c as a function of the number of people n on tour
B) How much does she make for a tour with 9 people?