I would like to ask how do I scan my art

So basically I have been doing a lot of drawings lately and every time I took pictures of them through my iPhone camera the quality looked bad. I noticed a few Instagram artists had good quality on their drawings so I asked one of them that seemed approachable " what do you use? ". They told me a "high resolution scan". So I assumed a high resolution scanner? I have no experience with that kind of stuff and don't know how it is that you do it So how do you scan your art? What is required? A scanner? Computer involved? I looked up some YouTube videos and they weren't very helpful because all the people did was get right into the computer to edit some stuff.

How can someone tell if you are on aeroplane mode?

I connect to the Wi-Fi at home and my dad always wants me to turn my iPhone to aeroplane mode at night. I didn't have it on one night, and he told me to turn it on and that he knew because he could "see it on the thing" and pointed to his phone?
How could he tell? Would this be a security issue? I'm on iiNet Wi-Fi

How many phones can I bring on a plane?

I have my regular iPhone 6 that I use but I make YouTube vlogs and I use my iPhone 5s (which the screen is cracked) and I wanted to vlog my experience traveling to my hometown. All I will be bringing is my carry on so I won't be checking in a bag. Just a small backpack is all I ll have. Will I be ok to bring both phones with me?

Coworker went through my phone?

I worked yesterday and today I was on my laptop and I opened the messages app (if you don't know, if you have an iPhone and a MacBook you can connect your messages so they go to both places). I saw my managers name (who worked yesterday) in recent messages and it said "1 image sent." Thought this was weird and clicked it. I found a picture of my boyfriend smiling and me topless taken a few weeks ago(I knew about this pic). I slammed my laptop shut, horrified, and I went to my PHONE messages to see if I had somehow accidentally sent this pic last night, but the text thread I had with that manager was completely deleted. Btw I never delete texts. I went back to laptop and checked when photo was sent to him. 1:40 pm. At 1:40 pm I was at work, my phone in the break room where my manager had been sitting most of the day, where all of the workers leave their phones every time we work. My married, 40 y/o manager saw my phone, looked through my pictures and who knows what else, found a picture of me topless, sent it to himself and deleted the thread. I only found it because of message sharing to my MacBook. I feel sick. Is this my fault for not having a lock and having that pic in my phone? I was underage until about 2 mo. Ago, so this man has mostly known me as a minor. I'm disgusted with him and myself. I love working here & I've been here 2 yrs but this changes everything. I'm angry, hurt, grossed out, and upset. I think I want to quit or at least tell the manager above him.