Does linkedin really a good place to start business?

i've been asked to start business via linkedin. i think it's good to connect with people who in our field. but it's a good platform to do business? you.

On january 1 of the current year, jimmy's sandwich company reported owner's capital totaling $128,000. during the current year, total revenues were $106,000 while total expenses were $95,500. also, during the current year jimmy withdrew $30,000 from the company. no other changes in equity occurred during the year. if, on december 31 of the current year, total assets are $206,000, the change in owner's capital during the year was: