What is the predict meaning of motivate

Pls, i really need on this question?

Based on how the stage directions are used in this excerpt from act 1 scene 1 of richard iii what was likely the main purpose of providing stage directions in drama

At a restaurant,one small drink costs $1.15 and one large drink costs $1.75 a family buys three small drinks and two large drinks.before tax,what is the total cost for the drinks at this restaurant