Problem
An investor bought a one-acre lot on the outskirts of a city for $9000 cash. Each year she paid $80 of property taxes. At the end of 4 years, she sold the lot for a net value of $15,000. What rate of return did she receive on her investment?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.