How do optical discs store data? select one: a. a magnet aligns iron particles on a platter. b. a laser burns tiny pits onto a disc. c. a digital spectrometer leaves grooves in a platter. d. electronic memory records data on chips?

Dean wants a quick way to look up staff members by their staff id. in cell q3, nest the existing vlookup function in an iferror function. if the vlookup function returns an error result, the text “invalid staff id” should be displayed by the formula. (hint: you can test that this formula is working by changing the value in cell q2 to 0, but remember to set the value of cell q2 back to 1036 when the testing is complete.)

Ou listened to a song on your computer. did you use hardware or software?

Elements such as fonts colors visual structure graphics and the interface of a web page should complement each other to ensure blank