There are 4 red and 8 blue marbles in a bag. Mark draws a blue marble out of the bag and does not replace it Mark draws a second blue marble out of the bag and does not replace it. What is the probability that the next marble he draws will also be blue? ОА. 2 3 B. 3 4 Ос. 3 5 D. 1 6​

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

Which of the functions graphed below has a removable discontinuity?

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.