A business's total revenue for a specified period is 500,000 it's operating expenses are 50,000 and it's net profit is 150,000 what is the company's non operating expense?

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?