The following series of revenues and expenses in $1000 units were recorded by a mobile phone business. At a return rate of 10% per year, (a) determine the net future worth in year 10. (b) Did the...

The following series of revenues and expenses in

$1000 units were recorded by a mobile phone business.

At a return rate of 10% per year, (a) determine

the net future worth in year 10. (b) Did the owners

make their expected 10% return? How do you know?

Year Revenues, $ Expenses, $

0 0 −2500

1–4 700 −200

5–10 2000 −300