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please don’t answer if you don’t know this is a exam

Orla and eduardo each looked at a strand of their hair under a microscope and measured the diameter. orla's strand was 0.005\,\text{cm}0.005cm in diameter, and eduardo's strand was 0.012\,\text{cm}0.012cm in diameter.

Simplify the expression. the quantity x to the two fifths power end quantity to the power of 10

Which diagram shows a point p an equal distance from points a, b, and c?