Final answer:
To count the musica room usage in cell G16, the COUNTIF function with an absolute reference to the data range is needed. The formula, for example, could be '=COUNTIF(A1:A100, "Musica")'. This formula can then be copied down to cells G17-G20 without changing the referenced data range.
Step-by-step explanation:
To determine the total count of musica room usage in cell G16 using the COUNTIF function, you should first ensure that you have a range and criteria set up for your count. For example, if the data for room usage is contained in cells A1:A100 and you want to count how many times 'Musica' comes up, your formula in cell G16 will look like =COUNTIF(A1:A100, "Musica"). It's important to use absolute references for the range if you plan to copy this formula down to cells G17 through G20. This ensures that the range doesn't shift when the formula is copied.
When you copy the formula from G16 to G17-G20, the absolute range stays the same while still allowing for any dynamic criteria you may have in your formula. If you simply want to keep the count, then the same formula can be copied down without changes. However, if G16 contains a specific criteria that may change from cell to cell (such as counting different room names), you would use relative references for the criteria part.