Will give brainliest to first correct answer!! the polygons are similar. find missing side length

Classify the polygon by its number of sides. state whether the polygon appears to be regular or not regular. a.heptagon, regular b. heptagon, not regular c. octagon, regular d. octagon, not regular

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.