Find the discount (ordinary interest) and proceeds on a promissory note for $2,000 made by Barbara Jones

Question:

Find the discount (ordinary interest) and proceeds on a promissory note for $2,000 made by Barbara Jones on February 10, 2011, and payable to First State Bank on August 10, 2011, with a of 9%.
Discount Rate
Depending upon the context, the discount rate has two different definitions and usages. First, the discount rate refers to the interest rate charged to the commercial banks and other financial institutions for the loans they take from the Federal...