The graph shows the relationship between the number of minutes an airplane has been in the air and its elevation in feet. Use the points (2.5, 4270) and (4,6832) to find the change in elevation of the airplane each minute.
The airplanes elevation increases by _ feet each minute.
here’s the graph:

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.