The intersection of the steps is just a fancy way of asking wi\hich numbers are in both equations so lets look and see :)
The 1st = 0...1...5...7...8
The 2nd =0........5...7........9
Answer = D {0, 5, 7}
Hope this helps have any questions let me know :)
Answer:
Radius: 22 Circumference: 138.23
Step-by-step explanation:
The radius is half of the diameter so 44/2 is 22.
The circumference can be found by 2*pi*r or pi*d.
or 
Answer:
AC=42
EB=21
BC=26
thats all i know, sorry hope u figure it out
Step-by-step explanation: