I went to Home Depot today with my uncle and I…

I went to Home Depot today with my uncle and I couldn’t just leave these babies there. However I have no idea what they are, any guesses?

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The first one is most likely an echeveria elegans, but it’s hard to tell since the leaves aren’t in great shape – it’s starting to show signs of overwatering and not enough light, so get on that asap! The second one is a peperomia graveolens. The third is an echeveria ‘tippy’, and the last one is a graptoveria ‘silver star’.