Which of the below mentioned operating system is not a proprietary os.

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

Auser wants to add a thick, dark green border around a chart in powerpoint. the user can do this in chart tools by choosing what

Typically, a cover letter should be no longer than