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3. Expression
Any single number, single variable or combinations of operations ( +, -, X, /) involving numbers and variables. Does not include an equals sign
eg – 5, 5a, x + 9, 2y-7
4. Equation- A mathemtical statement ith two expressions
that have the same value and are separated by an equals sign
Eg. 2t-4= 10
6. Formulaa mathematical statement that represents the
relationship between specific quantities.
D=M/V