Sylvie finds the solution to the system of equations by graphing, у
y = x + 1 andy - - x-1
Which graph shows the solution to Sylvie's system of equations?

How can we find the measure of an exterior angle if we know the measurement of an interior angle

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.

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22