What's 22 to the power of 3

1. how do you find p(a and b) if a and b are dependent events for two or more actions, such as selecting two candies and drawing p(green, and then pink)?

Ali was paid $75 for mowing a neighbor''s yard. this is one fourth of the amount of money she earned all summer

While on a train trip, marsha noticed that there were 35 people in her train car. after the next stop, there were only 21 people in her car. if p represents the percent decrease in the number of people in marsha's train car, what is p?