What is the standard deviation for the data set? 212, 249, 212, 248, 239, 212, 216, 234, 248

Express your answer as a decimal to the nearest tenth.

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Pls urgent max amount of points will be given and pls do not answer if unsure or you will be reported by me and brainliest answer gets the brainliest .. thing so yeh

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle