It total revenue is greater than total variable costs, the airline should sell a positive quantity of tickets

TRUE

Explanation:If Total Revenue is greater than Total variable cost,the Airline is expected to sell more or positive number of tickets.

TOTAL REVENUE: this is the total receipts from the sale of goods and services rendered to customers. It can also be described as the total amount of money collected from the sale of goods and for services rendered in this case what is sold is the Airline Tickets.

TOTAL VARIABLE COST: is the total costs incurred by a business entity for the production of goods or the services rendered,the services can be the airline tickets. Total variable costs increases as the number of Products and services increase.

b, fewer problems later! good luck