What= what 

What is the profit maximization rule ?

Perf competition, oligopoly, duopoly ,profitopoly

Imperfect competition, monopoly, oligopoly, competition

Monopoly, Perf competition, monopolistic competition, oligopoly

monopoly, oligopoly,monopolistic competition, profitoploy  

As input costs go down, marginal product goes up 

As input cost goes up, marginal product goes down 

Investment in branding at the start of business

Taking money out of a bank account earning interest 

Outfitting a space to be used as a bakery 