Help me please please

3. meena and ala are two friends. meena has a habit of using new pens almostevery day, whereas ala believes in getting a refill for her pen instead of buyinga new pen even though her friends make fun of her.a) which out of two practices would you follow and why? b) which value is ala depicting?

Idid a trial but its not letting me view the questions without signing me out.

What is the tax base for the sales tax ?