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1. Anna’s age will be equal to 6 years if her sister is five years old. The expression is Anna= 2T -4.

   What is an expression?

   Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

   Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax’s order of operations and other features.

   Given that Anna‘s age is eight years less than four times her sister’s age right in expression for Anna‘s age how old is Anna if her sister is five years old

   The expression for Anna’s age is given below:-

   Anna’s age= 2T-4

   Sister = 5 years

   Anna= 2T -4

   T is my sister’s age. Then Anna’s age will be calculated as:-

   2(5)-4 = 10 – 4 = 6 years

   Therefore, Anna’s age will be equal to 6 years if her sister is five years old. The expression is Anna= 2T -4.

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