Explanation

The Maastricht Treaty established the EU, created EU citizenship, and paved the way for the euro.

It was signed by 12 countries.

It laid the foundations for the euro and set criteria for countries to join.

Explanation

Pipe A and pipe B can fill the tank in 3 hours and 5 hours, then total work = LCM of (3, 5) = 15 unit

Efficiency of pipe A = 15/3 = 5 unit and efficiency of pipe B = 15/5 = 3 unit

From 7 to 8 AM, pipe A alone done 5 unit, work remains (15 - 5) = 10 unit,

Now, pipe A and B together can do it in = 10/(5 + 3) = 10/8 hours = 10/8 × 60 = 75 min

 The required time is 8 AM + 75 min = 9 AM + 15 min = 9 : 15 AM

∴ The correct answer is 9 : 15 AM

Explanation

Antarctica is the continent covered with the most glaciers, with 91% of the world's glaciers found there.

Antarctica also contains 90% of the world's glacier ice, which is enough to raise sea levels by nearly 60 meters if it were to melt.

Explanation

Let's calculate the total cost of placing an advertisement containing 22 words:

Fixed cost = $3.50

Variable cost = 22 words x $0.25 per word = $5.50

Total cost = Fixed cost + Variable cost = $3.50 + $5.50 = $9.00

So, the total cost of placing an advertisement containing 22 words is $9.00.

Explanation

In MS Excel, a function is a pre-defined formula that performs a specific calculation or operation.

Examples of functions in Excel include SUM, AVERAGE, COUNT, IF, and many others.

Functions are used to manipulate data, perform calculations, and analyze information in a spreadsheet.

Explanation

Slide Sorter view displays all the slides in a presentation as miniature representations, allowing you to easily sort, rearrange, and organize your slides.

This view is particularly useful for managing and rearranging the structure of your presentation.

Explanation

To password-protect a Microsoft Word document, follow these steps:

1. Go to the "File" menu
2. Click on "Info"
3. Click on "Protect Document"
4. Select "Encrypt with Password"
5. Enter a strong password and confirm it
6. Click "OK"

This will encrypt the document and require a password to open it.

You can also use the "File > Save As" method and select "Password" in the "Save As" dialog box, but the "File > Info > Protect Document" method provides more security options.

Explanation

Typing "cmd" in the Run dialog box (Windows key + R) will open the Command Prompt.

The Command Prompt is a command-line interface that allows you to execute commands, run programs, and navigate through files and folders.

Explanation

The Socialist Federal Republic of Yugoslavia disintegrated into its constituent states in January 1992.

This occurred following the death of Josip Broz Tito in 1980.

Explanation

C11 and D29 are cell addresses in a spreadsheet, specifically in Microsoft Excel.

• C11 refers to the cell located in column C and row 11.
• D29 refers to the cell located in column D and row 29.

Cell addresses are used to identify specific cells in a spreadsheet, and are typically written in the format "ColumnLetterRowNumber" (e.g., A1, B2, C3, etc.).