Devon is trying to find the unit price on a 6
-pack of energy drinks on sale for $2.99. his sister says that at that price,
each energy drink would cost just over $2.00
. is she correct and how do you know? if she is not, how would
devon’s sister find the correct price?

No, she's not. If each energy drink's unit cost was just over $2.00, and there are 6 drinks in a pack, then that's at least $12.00 right there, but the entire 6-pack is on sale for only $2.99. She should find the correct price by dividing $2.99/6, resulting in about $0.50 per drink