Assume that 3-month Treasury bills totaling $13 billion were sold in $10,000 denominations at a discount rate of 3.650%. In addition, the Treasury Department sold 6-month bills totaling $11 billion at a discount rate of 3.595%. a. What is the discount amount for 3-month bills? (Do not round intermediate calculations. Round your final answer to the nearest cent.)

b. What is the discount amount for 6-month bills? (Do not round intermediate calculations. Round your final answer to the nearest cent.)

c. What is the effective rate for 3-month bills? (Do not round intermediate calculations. Round your final answer to the nearest hundredth percent.)

d. What is the effective rate for 6-month bills? (Do not round intermediate calculations. Round your final answer to the nearest hundredth percent.)