21. In cell C10, enter a formula that uses the MAX function to find the latest date in the project schedule (range C6:G8).

To find the latest date in the project schedule range C6:G8 using the MAX function, you can follow these steps:

1. Select cell C10.
2. Type the following formula into the formula bar:

```
=MAX(C6:G8)
```

3. Press Enter to get the result.

The formula will calculate and display the latest date from the range of cells C6 to G8 in cell C10.