The company recently purchased six rail cars of grain at Muncie, Indiana; three rail cars at Brazil, Indiana; and five rail cars at Xenia, Ohio. Twelve carloads of grain have been sold. The locations and the amount sold at each location are as follows:

Location Number of Rail Car Loads

Macon, GA $4$

Greenwood, SC $2$

Concord, SC $3$

Chatham, NC $3$