Dollar Bill Supermarket is one of the best in the city. However, shoppers prefer other supermarkets to it as there is always a long queue at the billing counter. The outdated billing registers make the entire process inefficient. Which of the following steps should the supermarket management take to improve the billing process?

A) limit the number of products customers can buy
B) limit the number of customers in the supermarket
C) change the process structure
D) change process resources

You are in the market for a new refrigerator for your company’s lounge, and you have narrowed the search down to two models. the energy efficient model sells for $700 and will save you $45 at the end of each of the next five years in electricity costs. the standard model has features similar to the energy efficient model but provides no future saving in electricity costs. it is priced at only $500. assuming your opportunity cost of funds is 6 percent, which refrigerator should you purchase