What is the slope of the line through (6, 3) (7, -4)

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?

Solve the equation x/4 - 5= -8 -27 -12 -7 12

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.