Anumber is randomly selected from {15, 16, 17, 18, 19, 20}. a is represented by the event that the number picked is less than or equal to 16. what is the probability of the complement of event a? 1/6 1/3 2/3 5/6

Asquare parking lot has 6,400 square meters what is the length in meters

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

How do i multiply two digit numbers