I need help with the problem.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p. mc) knowing that it is going to rain tomorrow, and going to bed before 9 p. md) knowing that you have a test in school tomorrow, and studying thw night before