please slove and explain :)

Anne Sugar makes large ceromic pots for use in outdoor landscaping. She currently has two models, one square and the other round Because of the size of Anne's creations, only one pot can be fired in the kiln at a time Information about each model follows. Assume Anne can sell as many pots as she can create but is limited os to the number of hours that the kiln can be run. Required: 1. Compute the contribution margin per unit and contribution margin per hour of firing time. 2. Which type of pot should Anne produce to maximize her short-term profit