some advice plz

i've eatin weed brownies several times and liked them very much, but i myself have never made them. next weekend me and some of my friends are planning to make them. i have the recipes and everything but i was just wondering how much weed we have to put into a batch to get a good long high, like 6 hrs, cuz the last few times i had them thats how long i was high for and liked it. There will be about 10 of us and the weed we will be gettin is decent nugget which my friends sells for about 40-45$ an eigth. So how much would be a good amount to use?

um a bag or a quarter

Ten people lit for six hours...uh, at least a 1/4 oz. of quality bud.

As much as you want.
Actually, as much as you've got.

we plan on gettin as much as we need. would a half oz of good bud work?

that'll be some awesome brownies.
just make bud butter instead of directly in the brownies..
its a lot better.