B Science/BComm maybe lol? Don't see how the two would go together, although maybe if you did research you could find out if employers regarded the science/comm double degree higher. Or even if they didn't, then it allows you to be able to pursue careers in either science or business after leaving uni.
Or if you like applying science, then you could do engineering/commerce. Would make you way more employable than if you did a science/comm double degree.