The brackets are first, then the multiplication
TWENTY ONE BA DUM DUM DUM
Note that A and D are ludicrous choices, so you can throw them away outright. (Any divergent series cannot have a sum, and any convergent series must have a sum.)
The sum is certainly convergent because it can be written as a geometric sum with common ratio between terms that is less than 1 in absolute value.


We can then find the exact value of the sum:




So the answer is B.
No, all regular polygons does not have even number of sides.
Suppose, heptagon which is a regular polygon which has 7 sides.
But, all the sides of any regular polygon are equal in length.
Step-by-step explanation:
1 in red is the rectangle
2 is yellow is square
3 in perpel is a rhombus
4 is not in Quadrilaterals
5 in green us parallelogram
6 is the trapezoid
i think i helped you
4 3