Darth Company sells three products. Sales and contribution margin ratios for the three products follow: 
Given these data, the contribution margin ratio for the company as a whole would be:
Definitions:
Lymphatic Trunks
Large lymphatic vessels that drain lymph from different parts of the body into the bloodstream.
Lymphatic Collecting Vessels
Specialized vessels within the lymphatic system that transport lymph fluid back to the circulatory system.
Thymus
A lymphoid organ situated in the neck region that plays a role in the maturation of T cells, essential for the immune system.
Plasma Proteins
Proteins found in blood plasma, playing roles in blood clotting, defense against disease, and transportation of substances.
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