Which powerpoint file can't be edited or modified?

Linux is distributed under gnu gpl. why is this important? a. it ensures that only torvalds can profit from the sale of linux b. it prevents unknowledgeable users from downloading programs they don't know how to operate. c. it provides protection for the developers who created linux. d. it states that anyone can copy, modify, and share the program if changes are made public.

Most shops require the technician to enter a starting and ending time on the repair order to track the actual time the vehicle was in the shop and closed out by the office. this time is referred to as _ time ? a. comeback b. ro c. cycle d. lead

The song about casey jones a railroad engineer who gives his life on the job would most likely gall under the folk song category of? a-work song b-nonsense song c-religious song d-ballad