Can my school see my history?

So I was on my school account and I looked at my history. My iPhone searches were on there because I had forgotten to sign out. I cleared my history and I was wondering if my school can still see it even thought it's gone. (the searches were made at home, my own Wi-Fi, my own phone and laptop, but on my school account.) Please TELL ME!

Can I Repair Ripped IPhone 4S Battery?

So I found my Brothers old iphone 4s and its back cover is not attached. So I noticed that the black strip of the lithium battery is ripped from the silver connector with screws, it probably was ripped out without unscrewing and pulling out the connector.So is it actually possible to somehow connect the black strip of the battery with the connector. The phone still works when it is plugged in to the charger but immediately dies when disconnected.

Why can't i hear sound in my ear buds?

Why can't i hear sound in my ear buds?

Added (1). So, this morning i was on youtube, where the audio was playing perfectly normal as usual. I got read some manga and come back to youtube, and i can't hear anything at all. I'm using earbuds that come with an iphone 6 plugged into computer. Computer is HP Paivlion dv6 Notebook pc. I tried updating the drivers to the latest as some places online suggested, but they didn't do anything.

(earbuds work in phone perfectly fine, just not in latptop for whatever reason)