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
Answer:
70%
Step-by-step explanation:
Multiply by ten and you get your percent
Answer:
The answer is 82.
Step-by-step explanation:
Just work it through.
Answer:
Step-by-step explanation: