In the matrix below, what is the value of 'sz? 2 21 9
1
7
0
5
16 8 4
0 32
32 7

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

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Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.