4/x + 2/y = 3 is that linear? explain

please help i need it for my final

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.

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Factor the expression using gcf 9b+45