How to solve for x in triangles geometry

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Sum is 17 and their difference is 3

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?