A charter flight charges a fare of $300 per person plus $35 per person for each unsold seat on the plane. The plane holds 100 passengers. Let x represent the number of unsold seats. V a. Find an expression for the total revenue received for the flight R(x). R(x) = b. Choose the correct graph of the function, R(x), below. O O O O 104140- 104140- 104140- 104140- O X ' x 1 100 100 100 c. The number of unsold seats that will produce the maximum revenue is ( Round to the nearest whole number as needed. ) d. The maximum revenue is $ ( Round to the nearest whole number as needed . )