Which of the following are in correct order from greatest to least?

O pi/2, 300°, 5pi/3, 7pi/6, 2pi/3
O 5pi/3, 7pi/6, 2pi/3, pi/2, 330°
O pi/2, 2pi/3, 7pi/6, 5pi/3, 330°
O 330°, 5pi/3, 7pi/6, 2pi/3, pi/2

How do you find p(a and b) if a and b are independent events for two or more actions, such as tossing a coin twice and finding p(heads and heads)? 2. how do you find p(a or b) if a and b are independent events for one action, such as spinning a four-color spinner once and finding p(red or blue)?