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What percent of the circle below is shaded?

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.