Geometry test, just put the correct letter

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?

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths