The 1-2-2-1 system in volleyball is a defensive formation where there is one player positioned in the back row, two players in the middle, two players in the front row, and one player in the back row. This formation is commonly used to defend against the opponent's attacks and to set up offensive plays. The players in the middle and front rows are responsible for blocking and digging, while the back row player provides defensive coverage and sets up the offense. This system allows for a balanced defensive coverage and offensive setup. **

In basic arithmetic, 1 + 1 equals 2 because when you combine one unit with another unit, you end up with a total of two units. Similarly, 2 + 1 equals 3 because when you add two units to one more unit, the total number of units becomes three. These equations follow the fundamental principles of addition, where the sum represents the total quantity when two or more numbers are combined. **

The cost of a portable PlayStation 2 can vary depending on the condition and where it is being purchased. On average, a portable PlayStation 2 can cost anywhere from $50 to $150. However, prices may fluctuate based on factors such as included accessories, condition, and whether it is being sold new or used. It's best to research and compare prices from different sellers to find the best deal. **

Yes, 1 + 1 is indeed equal to 2. This is a fundamental principle of arithmetic and mathematics. The concept of addition states that when you combine two individual quantities of 1, the result is 2. This principle is universally accepted and forms the basis of many mathematical operations and calculations. **

The best Windows 2-in-1 laptop will depend on your specific needs and budget. Some popular options include the Microsoft Surface Pro 7 for its powerful performance and high-quality display, the HP Spectre x360 for its sleek design and long battery life, and the Lenovo Yoga C940 for its versatile hinge design and excellent audio quality. It's important to consider factors such as processing power, display quality, battery life, and portability when choosing the right Windows 2-in-1 laptop for you. **

1 1/2 stories typically refers to a house or building that has one full floor and a second floor that is partially finished or smaller in size. This type of structure often has a main level with living spaces and bedrooms, and a second level that may have additional rooms or storage space. The half-story is usually located within the roofline of the building, creating a unique architectural design. **

No, it is not normal for a father to put his finger in the mouth of a 1 1/2 month old baby until it gags. This behavior can be dangerous and potentially harmful to the baby's health. It is important for parents to handle their baby with care and to avoid any actions that could cause distress or harm to the child. If a parent is unsure about appropriate ways to interact with their baby, they should seek guidance from a pediatrician or other trusted healthcare professional. **

The decision of which suitcase to take for the flight depends on your specific needs and preferences. Consider factors such as the size and weight of the suitcase, as well as any specific features or compartments that may be important for your trip. Additionally, think about the airline's baggage restrictions and your own ability to handle the suitcase. Ultimately, choose the suitcase that best meets your travel requirements and is most convenient for you. **