Angles 1 and 2 are supplementary. • The measure of angle 1 is (2x - 3) ◦
• The measure of angle 2 is (-5x + 423) ◦

What is the measure of angle 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.