sjgwj81 sjgwj81 02-11-2022 Mathematics Answered Which equations support the fact that rational numbers are closed under addition? Select each correct answer. A) √2+(−√6)=0 B) √2 + √2 = 2√2 C) 1/3 + 1/3 = 2/3 D) √9 + √9 = 2√9