Math..
the circumference (c)c of a circle is 1818 centimeters. which formula can you use to find the radius (r)r if you know that c=2πrc=2πr?

a. r=c2πr=c2π

b. r=2cπr=2cπ

c. r=πc2r=πc2

d. r=2πc

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?