Suppose country a sells $100 million worth of goods and services to country b. country b sells $50 million worth of goods and services to country a. these are the only two countries in macro world. net exports in country:
a) b equal −$50 million.
b) a equal $150 million.
c) a equal -$150 million.
d) b equal $50 million.

You are thinking of making your mansion more energy efficient by replacing some of the light bulbs with compact fluorescent bulbs, and insulating part or all of your exterior walls. each compact fluorescent light bulb costs $4 and saves you an average of $2 per year in energy costs, and each square foot of wall insulation costs $1 and saves you an average of $0.20 per year in energy costs.† your mansion has 150 light fittings and 3000 sq ft of uninsulated exterior wall. to impress your friends, you would like to spend as much as possible, but save no more than $750 per year in energy costs (you are proud of your large utility bills). how many compact fluorescent light bulbs and how many square feet of insulation should you purchase? how much will you save in energy costs per year? (if an answer does not exist, enter dne.)

Your sister is thinking about starting a new business. the company would require $375,000 of assets, and it would be financed entirely with common stock. she will go forward only if she thinks the firm can provide a 13.5% return on the invested capital, which means that the firm must have an roe of 13.5%. how much net income must be expected to warrant starting the business? a. $41,234b. $43,405c. $45,689d. $48,094e. $50,625

Sue peters is the controller at vroom, a car dealership. dale miller recently has been hired as the bookkeeper. dale wanted to attend a class in excel spreadsheets, so sue temporarily took over dale's duties, including overseeing a fund used for gas purchases before test drives. sue found a shortage in the fund and confronted dale when he returned to work. dale admitted that he occasionally uses the fund to pay for his own gas. sue estimated the shortage at $450. what should sue do?