30 people liked Brand X. This is 20% of the people in a survey. a) How many people were there in the survey?
b) What percent of the people did not like Brand X?
c) How many people did not like Brand X?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32