Will this store replace a cracked Samsung screen?

Nope not at all

Nope

No, but uBreakiFix will, but first you need to make sure you have Insurance with Verizon which will be Asurion first. They'll ask a few questions about the condition of your device on the physical part. Once they confirm that, it'll be at their discretion to pre-approve sending you to a uBreakiFix Location near you, once that is determined, you pay that over the Phone and you'll get a notification as well as the Store. I had a few minor cracks on my S8+. Once I went through Asurion with my description and answered their questions, my $30 was paid to Asurion and my Phone at uBreakiFix got fixed in two hours. This helps having to go around paying the Deductible to get your Phone fixed.

I don't know but there is a place that can replace it