While at a garage sale, jenna purchased a set of used plastic baby bottles. she noticed the symbol "7" in a triangle on the bottom of the bottles. what would you tell her concerning the use of these bottles to feed her baby?

I would tell Jenna that she first needs to research what the 7 on the bottom of the bottles means. This number is in reference to the specific type of plastic used in the bottles. She needs to make sure this plastic has not been deemed as dangerous for infants. Once cleared, she should thoroughly wash the bottles and use them.