Final answer:
To change the fill color of cell D9 to Blue, Accent 1, Lighter 60%, select cell D9, navigate to the Home tab, click on the Fill Color button in the Font group, and choose the color from the Theme Colors section in row 3, column 5.
Step-by-step explanation:
To change the fill color of cell D9 to blue, accent 1, lighter 60%, you will need to follow these steps in a spreadsheet program such as Microsoft Excel:
Click on cell D9 to select it.
Go to the Home tab in the ribbon at the top of Excel.
Look for the Font group; within this group, click on the Fill Color button, which looks like a paint bucket.
Click on the small arrow next to the bucket to display the color options.
In the dropdown menu, select the Theme Colors section.
Move to row 3, column 5 in the theme colors palette.
Click on the color which is labeled as Blue, Accent 1, Lighter 60%.
After completing these steps, cell D9 will now be filled with the specified blue color.