Answer:

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A is the answer hope this helps
100 because it is the only whole number here and variables can’t be combined with plain whole numbers.
Answer:
add by 13 so it would be letter A
The rotation of a triangle will form a cone. The surface area of a cone is calculated through the equation,
SA (cone) = πrl + πr²
Hence, for this item the best answer would be cone with surface area a = π.r.l + π.r2, the third choice.