Which of the following variable names follows the rules for naming variables?

a.
snack_$
b.
favorite_snack
c.
lunch time
d.
15 minute snack

Assume that there is a 4% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on three independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Which one of the following is considered a peripheral? a software b mouse c usb connector d motherboard

Sally is editing her science report about living things. she needs to copy a paragraph from her original report. order the steps sally needs to do to copy the text to her new document.