Answer:
a=A/8
Step-by-step explanation:
This MIGHT be the answer, I am 99% sure!
Answer:
4
Step-by-step explanation:
The general equation of a circle with center (a, b) and radius r is given by the equation;

The constant in the right hand side of the equation is simply the square of the radius;
We have been given the following equation;
(x-3)^2 + (y+1)^2 = 16
Comparing this with the general equation above;

Length of circumference is 2πr
2 π r and r is equal to 2 cm
I.e 12.5 cm
With 20 tickets sold the revenue would be 30
With 2 it would be $3
Therefore 1 ticket would have a $1.50 revenue