Do these drop buffs stack for Evo world?

So I randomly checked my core inventory and found that I have a bunch of Mineral Drop Rate +100% cores. I also have a few 20% drop cores in there. Since I'm looking for Mithril Ores, I wanna know if these would stack:

Mineral Drop +100%
Drop Rate +20%
Mithril Drop Core

How much drop would I get total if these are my only 2 buffs?

Thanks in advance