First - let's get some punctuation in here; just reading this post has made me feel anxious!
First question is it normal when I start my bike and start going and give it gas it sounds weird like really deep but it goes away when it's been warmed up and riding for a while is it normal or does it need new spark plugs or is it mechanical it is warm here in Kansas around 89 so didn't think it needs warmed up
Most engines need to be a bit warm before they run their best, it's pretty normal. On a cold day, if I give mine a light blip on the throttle when I've just turned her on her revs will lug and she won't like it. Wait a few seconds and she'll be more responsive - 5 or so minutes of riding will get the engine up to operating temps (2 bars on my instrument cluster) and that's when she'll really feel good, try to keep the revs down before she's fully warmed up, engines don't like it.
Aside from that, if you haven't yet changed the oil, it's probably a good idea. Who knows what the previous owner did or didn't do to the bike, I'd check/change all of the fluids and your bike will be much happier.
Second question is I'm a new rider first bike ever and not sure what Rpms I should be cruising at I've been staying in first gear in city around 7 rpms at 30 mph in first gear is that okay or should I be in second
Have you taken a BRC (Basic Rider Course), or something similar? The type of riding you are doing will dictate what range of rpms/gear you should be in. If you're just cruising, there's no reason to sit at 7k (unless that cruising is in 6th on the highway at 86 mph). Shifting up and down is a lot of the fun of having/riding a bike, if you sit in one gear all of the time it can be kind of boring!
Since you're new to bikes, I would advise staying out of first as much as possible. One pothole, sneeze or slip and your inexperienced wrist can grab more throttle than you're ready for, throwing you from the bike. If you're in a higher gear the bike won't feel as twitchy and you'll probably feel more comfortable. If I'm just casually riding around I sometimes even shift as early as 3-4k rpms, depending on the situation. Unless I am in a situation where I feel I may need the acceleration of the bike (twisties/racing cagers/making a pass/doing something else dangerous where having a bit more speed is a good thing), once I reach the speed I want to be cruising in, I'll shift up and drop the RPMs down. Makes for a smoother ride, uses less gas, quieter, etc.
TL;DR (but not really because you should probably read this) -
1- Use punctuation
2- This is normal, but give your bike an oil change
3- No, don't cruise at 30 in first gear, your bike has 6 gears, try some of the others out.
