What is used to manufacture chips in computer

The head restraint should be adjusted so that it reaches a. the top of your ears b. the base of your skull c. the top of the head

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

Lucas put a lot of thought into the design for his company's new white paper. he made sure to include repeating design elements such as color schemes and decorative images. his goal was to a. add symmetry b. create a unified publication c. provide consistency d. save money