In my area a nickel is an 1/8th. I can drive over the border and ask for a nickel and get .5g. I know confusing. Break the code and just talk weight to your would be clients. When you sell people will expect a deal when buying 7.5g and up. I would start selling to people you know and people they know. If you have nosey neighbours don't invite people to your house as it will invite a call to the fuzz. Also keep sandwhich bags in the kitchen and not close to your stash. My buddy just avoided a "trafficing" pinch because they couldn't prove he meant to sell because he didn't have baggies in his garage, he wraps his sells in tin foil which is always in the kitchen.

Prices in my area from strangers for mids:
1g-10$
7.5-65$
14g-100$
28g-180-200$

Anything really nice is 20-50% more. I live in Cananda though so I've never had to smoke crappy bud. When somebody comes over and you need to weigh in front of them show generosity but when you prepack be regimental as this is money and it does make the world go around.