Answer:
I believe the answer is 12.57
Step-by-step explanation:
True the circle is a congruent to the radius of an inscribed regular polygon inside the circle
The answer is B) 20
Because you have 5 brands and you combine each with the 4 others, so 5*4=20
4x-10=2
add 10 to each side (addition property of equality)
4x-10+10=2+10
simplify
4x = 12
divide by 4 (division property of equality)
4x/4 = 12/4
simplify
x=3