Home Blockchain Lesson #1: How to use Averages to Buy and Sell. Blockchain Lesson #1: How to use Averages to Buy and Sell. By Chris Butler - April 3, 2020 1427 0 FacebookTwitterPinterestWhatsApp source RELATED ARTICLESMORE FROM AUTHOR Can AI Help You Boost Your Income? The Ultimate Checklist for Finding the Best Crypto Casino Crypto Gambling Legislation — Is There a Future?