These are very good domains. I personally like them a lot. Unfortunately for you I don't have any skills of appraising a domain and I'm here to learn more as well. I would recommend trying some quick appraisal websites like:
Estibot
Domain Index
GoDaddy appraisal etc.
And compare the results you get to come to an average for each domain's value.
Of course, that too can't accurately name the price but could give a decent idea.
I specially like dryapple.com. That IMPO you should hold that one tight.
Hope I helped.