A bag contains four black marbles and three white marbles. If one marble is drawn out, and not replaced before another is drawn out, draw a tree diagram to find the probability that the two
marbles taken out are different colours.

Which formula finds the probability that a point on the grid below will be in the blue area? p(blue) = total number of squares number of blue squares number of blue squares p(blue) = total number of squares number of blue squares p(blue) = number of white squares

An airport in death valley is 60 feet below sea level, and an airplane is flying 2,000 feet above sea level. how many feet must the plane descend in order to land? a. 2060 b. 2000 feet c. 1940 feet d. 1880 feet e.1400 feet will mark as brainliest

Ineed with number 6 , explain how to get 1978