The result from the last test that ms. stone gave her class are 15,15,25,60,65,76,83,85,85,and 90. if she want to persuade her class to study harder for the next quiz , what statistical measure should he use?

Which number is irrational? a) 16 b) 18 c) 25 d) 36

If the measure of xyz is 81 what is the measure of yz

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.