the hangar is a balance there are two labeled weight of 4 grams and 12 grams the three circles each have the same weight what is the weight of each circle in grams.​

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

Divide. write in the simplest form. 4 1/6 divided by 10