Answer:
f=54
Step-by-step explanation:
ma is m times a 3x18= 54
The first one is the answer to the first question.
the second one is the answer to the second question
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:
5% sales tax would be $0.70
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