Hi, can some one tell me how to solve this problem √-27 (step by step )

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

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.