System upgrades are developed during which stage of the sldc?
analysis
maintenance
implementation
design

Create a cell reference in a formula by typing in the cell name or         a. right-clicking the cell. b. clicking the cell. c. clicking the column where the cell is located. d. clicking the row where the cell is located.

Which statistical function in a spreadsheet you to see how far each number varies, on average, from the average value of the list?

Alcohol’s affects on the cornea and lens of the eye make it more difficult