How to restore deleted apps?

One of the boys in my class stole my iphone and deleted almost every single app on my phone, not including the ones that came with it of course. Ugh, I want to punch him in the face! Anyway, If you're gonna say to go to settings and restrictions, well not gonna happen. :'( My dad freakin locked the restrictions thing.

So I went to iTunes and plugged my phone. I went to purchased apps in the iTunes store and downloaded them again. The only problem is, Itunes won't let me sync my apps to my phone. (The sync box is grey and faded)

Please. Anyone help me with this problem or I will bang my head so hard on a wall so I explode.

No, I'm serious. Please help me. I had about 40 apps on my phone and now they're All GONE:'(

10 POINTS FOR BEST ANSWER

Added (1). I can't sync my apps because the box is grey and faded like I said. And I can't go on App Store on my phone as well.

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Also can I pay them in payments?
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