B :) open circle means inequality and it needs to be at least 3 so the line has to increase, meaning the arrow is going right.
The ratio of circumference to diameter is independent of the radius.
Defining C=circumference, r=radius, D=diameter = 2r
Circumference = C = 2 π r = π D
=>
ratio of circumference / diameter
= C/D = π
The number of people in the auditorium can be less than or equal to 420 so let p represent the number of people
The inequality is p≤420
Answer: 0.29 or 29 cents each :)
anymore questions ask me ;)
32 is your initial value, because that is what he starts with