A class sells Christmas biscuits at break. They have five different kinds of biscuits: gingerbread biscuits, vanilla biscuits, shortbread biscuits, chocolatebbiscuitchocolate biscuits, and Linzer biscuits. To account for the different prices for the ingredients they deciedecide that not all biscuits will have the same prize. A package with gingerbread biscuits cost as much qas two vanilla. biscuits. A pacakgpackage with shortbread biscuits cost as much asthas the price difference between chocolate biscuit and a vanilla buscuibiscuit. A package with Linzer biscuits cost as much as the price difference between two chocolate biscuit packages and a vanilla biscuit package.

a$)$ Write down an algebraic expression to represent the prices of a gingerbread biscuit pacakgpackage,a shortbread biscuit package, and a Linzer biscuit package.