10 points. please help meee. I NEED HELP

An equation where variables are used to represent known values—function notation true or false

Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?

This is about circle theorems. someone asap : (