I dropped my iPhone 6 and sound doesn't work at all?

So I dropped my phone in the hallway. Screen protector cracked, but seemed fine. However, music/podcasts/YouTube won't play with headphones or through speakers. When I call people, I can hear the ringing, but the other person can't hear me. I've already tried restarting my phone.

Why can't I call this number? - 1

I used my pixel to call a number and it says call can't be completed but then when I used an iPhone to call it it goes through… Why is that?

Why are 20th century borns funny?

I was born in 2000, it's so sad that these fools don't know how an iPhone camera works! And they think they're smarter than us? Well those born in the 80s and 90s do but anyone before them doesn't and are stoopid!

Being a 21st century-born, I can easily guarantee the 2010s is better than the 90s

My mum has an Apple Iphone 6 which she told me I can have, how do I change icloud email address and transfer pictures from my phone to hers?

I have an Iphone 5s and I've had it for 5 years now. It's gone pretty slow now and it keeps turning on and off sometimes by itself so I want to sell that.

My mum has an Iphone 6 that she said I can keep because she has two mobile phones. She does not use her iphone that much and there aren't even any numbers or photos on her phone, she just uses it to play games and watch YouTube videos =/

I want to keep my mums number on her iphone, change the icloud email address AND transfer all my photos from my iphone 5s into her iphone 6.

How do I do that?

Please provide details and info.

Also, if you don't get what I'm saying, let me know.

Added (1). EDIT: Is backing up on itunes free?

Sprint down payment?

How do you get around the Sprint down payment?
I bought the iPhone 8 Plus 4 months ago and now want the 10. I paid $200 down for the 8 plus now they want $275 for the 10 and I've been with sprint for 2 years now.