csanch11

I'm in the process of enrolling in a 401k with trowprice. I'm a bit confused in this enrollment stage (screenshot below). There's the Roth 401k and the Pretax selection. My assumption is that the Pretax is the traditional 401k account? If so, why do they give you the choice of opening both traditional and Roth 401K accounts?

Attached is a screen shot of the details on how Costco matches employee contributions on their 401(k). I'm not too sure if I understand it. My Assumption: Costco will match 50% of your contributions. So if you contribute $42/month, then their match would be $21/month? Is my assumption correct?