Answer:
erm
Step-by-step explanation:
25
Answer:-80
Step-by-step explanation:f(x)=2*2+4*-10
I got radius= 54
arc/2pi r = degrees/360
then fill in what you know: 24pi/2pi r = 80/360
Now cross multiply and you get: 8640pi = 160pi r
Now divide both sides by 160pi and you get: 54= r