Answer:
An 18 sided shape.
Since the sum of the exterior angles of a polygon is 360° and an angle of the regular polygon is 20°, then 360° / 20° is the number of sides. We find the answer = 18, an octadecagon
Common ratio = second term / first term = 12 / 8 = 1.5
Since this is part C, we're gonna need more information than that because we don't have your exact homework! Maybe reupload ? I would need the calculations for the cost of bracelets and how much were sold to see the break even point to be accurate!
Well probably because Bob the builder is for little kids
You have a chance of 1/2 of getting a black ball. Good luck