'Shark Tank's' Lori Greiner and Mark Cuban offer tips for small businesses l GMA

The two entrepreneurs answer viewers' questions about marketing, advertising and running your own small business. SUBSCRIBE: https://bit.ly/2Zq0dU5 SIGN UP to get the daily GMA Wake-Up Newsletter: https://gma.abc/2Vzcd5j VISIT GMA: https://www.goodmorningamerica.com FOLLOW: TikTok:   / gma   Instagram:   / goodmorningamerica   Facebook:   / goodmorningamerica   Twitter:   / gma   #sharktank #smallbusiness #markcuban #lorigreiner #gma