Assume that $3-$month Treasury bills totaling $$15$ billion were sold in $$10,000$ denominations at a discount rate of $4\mathrm{.}050\%.$ In addition, the Treasury Department sold $6-$month bills totaling $$13$ billion at a discount rate of $3\mathrm{.}995\%.$

a$.$ What is the discount amount for a $$10,0003-$month bill?

Note: Do not round intermediate calculations. Round your final answer to the nearest cent.

Discouni amount for $3-$month bils

b$.$ What is the discoum amount for a $$10,0006-$month bill?

Note: Do not round intermediate calculations. Round your final answer to the nearest cent.

Distount amount for $6-$month bils

$

$19975$

c$.$ What is the effective rate for a $$10,0003-$month bill?

Note: Do not round intermediate calculations. Round your final answer to the nearest hundredth percent.

Efective rila for $3-$month bils

$\%$