https://bestpaperhelp.com/wp-content/uploads/2020/07/mary-logo2-300x75.png00adminhttps://bestpaperhelp.com/wp-content/uploads/2020/07/mary-logo2-300x75.pngadmin2020-08-08 15:09:022020-08-08 15:09:02useing the triple beam balance my question is 100+30+2.5=