The balance after a year will be represented by an expression m + 0.071m.
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
Given that:-
The total amount will be calculated as:-
Total amount = Principle + interest rate x priciple
Total amount = m + 0.071m
Therefore the balance after a year will be represented by an expression m + 0.071m.
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