$1.$ Carmelo Miraglia is an executive consultant at Tallridge Regional Medical Center. Carmelo is building a workbook that summarizes income and expenses for the organization.

Change the theme of the workbook to Office.

$2.$ On the Departments worksheet, change the width of columns C through H to $12\mathrm{.}00$ characters.

$3.$ Change the height of row $1$ to $21$ points.

$4.$ Merge and center the contents of the range A$2$:J$2.$