Using equation method, Break-even point is calculated as a) Sales = Variable expenses + Fixed expenses + Profit b) Sales = Variable expenses + Fixed expenses - Profit c) Sales = Variable expenses - Fixed expenses + Profit d) Not possible to calculate Select one: O a. Sales = Variable expenses - Fixed expenses + Profit O b. Sales - Variable expenses + Fixed expenses - Profit O c. Sales = Variable expenses + Fixed expenses + Profit O d. Not possible to calculate