Please help with this question I don’t understand due in an hour

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Data was collected on myrtle beach for 11 consecutive days. each day the temperature and number of visitors was noted. the scatter plot below represents this data. how many people visited the beach when the temperature was 84 degrees?

Acircle has a circumference of 28.36 units what is the diameter of the circle