Follow the picture please do it as i find this one cofusing

What is the slope of the line that contains the points (-2,1) and (0,-3)

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

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.