awww congrats on your rescue! You appear to have 2 ee hens, 2 barred rock hens, and a rhode island red. Keep an eye on their poop and make sure it looks "normal" no blood or anything funky looking like worms. I'd worm them and be prepared to possibly treat for coccidosis from living in their feces for so long
Give them either chick starter (non medicated) or flock raiser until they begin to lay then give them layer rations and offer oyster shells to keep the shells nice and strong. You can bathe them but like others siad you would have to blow dry them until they are completely dry and that takes what seems like forever sometimes. Give them a good dose of mite powder too just to be on the safe side, get them off to a good start in their new home
You can also give vitamins and electrolytes in their water for about a good week or so. That outta give them a nice boost. You can also feed them treats like fresh greens and scrambled eggs for extra protein in case their previous diet lacks the proper nitrueints they need which it sounds like it did. Good luck with your new girls :d they sure are cuties!