List m passes through the points ( -4,3) and (-4,7). what is the slope of the line that is perpendicular to line m ?

Find an equation for the linear function which has slope -10 and x-intercept -7

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.