Apparently its a Rebel EOS SL1 not a T5 like i thought. It says its a EF-S. Im really very new to photography and dont know much about it. My last camera was just a cheap point and shoot type.
The Vivitar lens is a telephoto 135mm, serial number 3701666. Im not sure if it was an EF mount or not. I found it at a thrift store for $8 but wanted to do some research to see if it would work before I actually got it.