Use the following corn futures quotes:

Corn 5,000 bushels
Contract Month	Open	High	Low	Settle	Chg	Open Int
Mar	455.125	457.000	451.750	452.000	2.750	597,913
May	467.000	468.000	463.000	463.250	2.750	137,547
July	477.000	477.500	472.500	473.000	2.000	153,164
Sep	475.000	475.500	471.750	472.250	2.000	29,258

a. How many of the March contracts are currently open?

b. How many of these contracts should you sell if you wish to deliver 180,000 bushels of corn in March?

c. If you actually make delivery, how much will you receive? Assume you locked in the settle price.