One - third the difference between 3/4 and 1/5

What is the approximate circumference of the circle shown below?

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?

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?