Tiffany purchased a $10,000, 13-week Treasury bill that is paying 2.25%. What is the effective rate on this T-bill? Please show the steps to solve

Joe Jay purchased a new colonial home for $260,000, putting down 20%. He decided to use Loyal Bank for his mortgage. They were offering a 6 1/2% for a 25-year mortgage. The principal after the first payment had a balance outstanding of:?

Jill Corporation accepted a $16,000 note on Aug. 12. Terms of the note were 13% for 100 days. Jill discounted the note on September 28 at the Reno Bank at 14%. The proceeds to Jill would be: