what is the tax amount on a 1/8?

30 percent on top of whatever Strain you decide to get as they Vary in pricing/quality/etc

You need a State issued medical card (not a recommendation from a clinic) to avoid ONLY the state sales tax and 5% of the city tax (which is 10% for non medical). The other taxed still apply to Medical patients. With no card or clinic recommendation its a 35% upcharge.

34.5% But with a medical cannabis card you DO NOT pay the increase

Don't know its brst too grow your own meds and take donations too keep tou going if you are patient try it. Look on YouTube for growing tips good luck.