An accountant is figuring out the rate of return on a compound interest rate investment. He has converted the interest rate into a compounding factor, so his next step is to multiply this by the - principal. - number of days in the investment period
- length of the investment
-daily yield

Firms like papa john’s, domino’s, and pizza hut sell pizza and other products that are differentiated in nature. while numerous pizza chains exist in most locations, the differentiated nature of these firms’ products permits them to charge prices above marginal cost. given these observations, is the pizza industry most likely a monopoly, perfectly competitive, monopolistically competitive, or an oligopoly industry?