If $476 invested today yields $500 in one year's time, what is the discount factor? A) 1.05 B) 1.50 C) 0.95 D) 0.05 If the one-year discount factor is equal to 0.90909, the interest must be equal to: A) 9.5% B) 9.1% C) 10.0% D) 5.0%