Answer 1

No problem, not to worry..
My replys are just suggestions,..
Anytime, try to understand , apply.. If not work then ask again in detail.

If you feel it's hard, then just see your profile description... 😉

Anything puts in quotes becomes a string.. May you asking about, If you want to put quotes in string then you need to uee escape character \ , read about escape sequences..
\' is just replaced by ' in string..

Hope it helps...

Answer 2

You are using wrong quotes... Check again..

Answer 3

I know. Double +
that's a hint. Hoped that you can find it yourself with that.
If it wrong quotes, then you need to try with other quotes..! How many are there?
first try it yourself is the best way.

var sayHello = `Hello World! \`I am a JavaScript Programmer.\``;
document.write(sayHello);

You can use ' single quotes ', or "double quotes ", also..

edit:
sayHello = "<br>Hello World! \`I am a JavaScript Programmer.\`";
document.write(sayHello);

sayHello = '<br>Hello World! \`I am a JavaScript Programmer.\`';
document.write(sayHello);

Answer 4

So what?
I think it's early to focus.. But try. no hurry..
Now focus on your interests, studies.., when you become old enough to programming then try to focus..

for about anything, practice makes perfect..
first basics important so your school teaches those. learn well those from school. later try to learn what you want in programming...