1- Of the fundamental dimensions length, mass, time and electric charge, which one is the most important in economic analysis and why?

2- In order to build a new warehouse facility, the regional distributor for Valco Multi-Position Valves borrowed $1.6 million at 10% per year interest. If the company repaid the loan in a lump sum amount after 2 years, what was (a) the amonnt of the payment, and (b) the amount of interest?

3- A sum of $2 million now is equivalent to $2.42 million 1 year from now at what interest rate?

4- In order to restructure some of its debt, General Motors decided to pay off one of its short-term loans. If the company borrowed the money 1 year ago at an interest rate of 8% per year and the total cost of repaying the loan was $82 milion, what was the amount of the original loan?

5- How many years would it take for an investment of $280,000 to accumulate to at least $425,000 at 15% peryear interest?

6- A company that mamufactures general-purpo Ose ansducers invested $2 million 4 years ago in high-yield junk bonds. If the bonds are now worth $2.8 milion, what rate of return per year did the company make on the basis of (a) simple interest and (b) compound interest?

7- dentify the following as cash infiows or outflows to Anderson and Dyess Design-Build Engineers: office supplies, GPS surveying equipment, auctioning ef used earth-moving equipment, staff salaries, fees for services rendered, interest from bank deposits.

8- Constrnct a cash flow diagram for the following: $ 10,000 outflow at time zero, $3000 per year inflow in years 1 through 5 at an interest rate of 10% per year, and an unknown future amount in year 5.

9- Amounts of $1000 1 year ago and $1345.60 1 year hence are equivalent at what compound interest rate per year? a. 12.5% per year b. 14.8% per year C. 17.2% per year d. None of the above

10- What simple iterest rate per year would be required to accumulate the same amount of money in 2 years as 20% per year compound interest? a. 20.5% b. 21% C. 22% d. 23%