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". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.
Step-by-step explanation:
Answer:
x= 50
Incredibly odd diagram, but interior polygon angles of 4 sides must be 360 in total. 180-130=50.
Can you take a better picture
Answer:
Step-by-step explanation:
22x10+h
Answer:
9
Step-by-step explanation:
