In order for the rule of 72 to give an accurate estimate of how long it will take to double in size, what must the interest rate be across the time period?

You are bearish on telecom and decide to sell short 100 shares at the current market price of $50 per share. a. how much in cash or securities must you put into your brokerage account if the broker’s initial margin requirement is 50% of the value of the short position? b. how high can the price of the stock go before you get a margin call if the maintenance margin is 30% of the value of the short position? (input the amount as a positive value. round your answer to 2 decimal places.)

The quinoa seed is in high demand in wealthier countries such as the u.s. and japan. approximately 97% of all quinoa production comes from small farmers in bolivia and peru who farm at high elevations—8,000 feet or higher. the seed is considered highly nutritious. mostly grown and harvested in bolivia and peru, and sold to markets in other countries, the seed is now considered an important for these nations. the governments of bolivia and peru are hopeful that this product will increase the quality of life of their farmers.

Comparative financial statements for weller corporation, a merchandising company, for the year ending december 31 appear below. the company did not issue any new common stock during the year. a total of 800,000 shares of common stock were outstanding. the interest rate on the bonds, which were sold at their face value, was 12%. the income tax rate was 40% and the dividend per share of common stock was $0.40 this year. the market value of the company's common stock at the end of the year was $18. all of the company's sales are on account. time interest earned ratio