4. _is the tool that relieves the programmer of the need to repeat identical part of their program.
5.
phase of compilation process is concerned with removing unnecessary code lines and
rearranging the sequence of statements in order to speed up the program execution without wasting resources.

yes we can change both the color of the value of a cell as well as background color of a cell at the same time .

as we know that excel sheet consists of columns and rows.

and intersection of column and row is called cell.

we can change color of the cell and background of the cell at the same time.

hence the statement that

can a person change color of the cell and background of the cell at the same time is true.

answerhard disks;