What does the expression 5n represent if n is the number of Ls?

Total Ls produced

Total matchsticks needed

Total cost of Ls

Total minutes spent

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Q1.

If Aftab's age is represented by the letter 'a' and Shabnam’s age is 3 years older, how can we express Shabnam’s age?

Q2.

If 's' represents Shabnam’s age and Aftab is 3 years younger, what expression represents Aftab’s age?

Q3.

If Aftab is currently 18 years old, what is Shabnam’s age?

Q4.

Which of the following is an algebraic expression for Aftab's age if Shabnam's age is 23?