Terry and sandra both found the sum of two 4-digit numbers, but their results were not the same. if terry made an error of addition by one in the thousands column and sandra's result was correct, what was the difference between the larger result and the smaller result?

ernst's electrical has a bond issue outstanding with ten years to maturity. these bonds have a $1,000 face value, a 5 percent coupon, and pay interest semiminusannually. the bonds are currently quoted at 96 percent of face value. what is ernst's pretax cost of debt?

You hold a diversified $100,000 portfolio consisting of 20 stocks with $5,000 invested in each. the portfolio's beta is 1.12. you plan to sell a stock with b = 0.90 and use the proceeds to buy a new stock with b = 1.50. what will the portfolio's new beta be? do not round your intermediate calculations.

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?