If your fork has a mount for a disc caliper, then yes. Most forks with rim brakes don't include a mount, though.
Depends on the bike. Look up disc brake caliper mounts on google. If your bike has those then it is possible. Best way would to be to go into the shop and ask
They can work miracles for sure. I'd bet they can, and I'd they can't they're super honest and will let you know, and explain other options for you. It's definitely worth checking up on!
It's a Dynacraft NEXT Gauntlet mountain bike
Most of the time. Depends on your bike.
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