Final answer:
To find out what percent of the company the entrepreneur has left, we subtract the fractions sold from 1. The entrepreneur has 0% of the company left.
Step-by-step explanation:
To find out what percent of the company the entrepreneur has left, we need to subtract the fractions sold from 1 (which represents the whole company).
The first sale is 1/2 of the company. So, 1 - 1/2 = 1/2 or 0.5.
The second sale is 6/6 of the company. So, 1/2 - 6/6 = 1/2 - 1 = 1/2 - 2/2 = -1/2.
Since negative values don't make sense in this context, we can conclude that the entrepreneur has 0% of the company left. Therefore, the answer is a) 0%.