**(a)** Given, Munnu’s age %p be x years, can you guess what (x – 2) may show?

Can you guess what (x + 4) may show? What (3x + 7) may show?

**(b)** Given Sara’s age today to be y years. Think of her age in the future or in the past. What will the following expression indicate?

y + 7, y-3, y + 4, y – 2.

**( c)** Given n students in the class like football, what may 2n show? What may show?