You are the accounting manager for Kool Ragz, Inc., a manufacturer of men's and women's clothing. The company needs to borrow $1,700,000 for 90 days in order to purchase a large quantity of material at "closeout" prices. The interest rate for such loans at your bank, Rimrock Bank, is 13% using ordinary interest. (a) What is the amount (in \$) of interest on this loan? $ (b) After making a few "shopping" calls, you find that Southside National Bank will lend at 13% using exact interest. What is the amount (in \$) of interest on this offer? (Round your answer to two decimal places.) $ (c) So that it can keep your business, Rimrock Bank has offered a loan at 12.5% using ordinary interest. What is the amount (in \$) of interest on this offer? $ (d) (Challenge) If Southside National wants to compete with Rimrock's last offer (part c) by charging $1,125 less interest, what rate (as a \%), rounded to the nearest hundredths of a percent, must it quote using exact interest? %