This seems like a personal question
First one (ignore22222323333333)
Answer:
Definition: The enclosing boundary of a curved geometric figure, especially a circle.
Step-by-step explanation:
Answer:
50 boys
Step-by-step explanation:
2/4 = 1/2
25*2=50
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown".
Step-by-step explanation:
In x + 2 = 7, x is a variable, but we can work out its value if we try:)
