Which of the following is the equation of a line in slope-intercept form for a line with slope= 2/3 and y-intercept at (0,-2)

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

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.

What percent of the circle below is shaded?