Classify the polygon by the number of sides. Is this a equilateral, equiangular, or regular A)Quadrilateral;equilateral B)Decagon; equilateral C)Octagon; regular D)Quadrilateral; regular E)Answer Not Shown

C

Step-by-step explanation:

An octagon has eight sides

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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