printers, monitors, tablets, cpus, and laptops are examples of a. application software b. operating system software c. hardware d. communication protocols e. input devices

Suppose an astronomer discovers a large, spherical-shaped body orbiting the sun. the body is composed mostly of rock, and there are no other bodies sharing its orbit. what is the best way to categorize this body? a. planet b. moon c. comet d. asteroid

The place where the extended axis of the earth would touch the celestial sphere is called the celestial

Description: write function lastfirst() that takes one argument—a list of strings of the format "lastname, firstname" —and returns a list consisting of two lists: (a) a list of all the last names (b) a list of all the first names