A bag has 1 red pen, 4 white pens, 5 blue pens, and 5 yellow pens. You randomly pull a pen out from the bag, put it back, and then pull out another one. What is the probability of getting a white then a blue pen?

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

52 cm radius = diameter = area = circumference = circumfer

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?