Set x and y to be the number of cupcakes and cookies, respectively.
Therefore, according to the question,
![Cost=1.25x+1.75y](https://img.qammunity.org/2023/formulas/mathematics/college/ecxql7zmyb1ow8n8iqrah6kewrt5kzn4n9.png)
![\Rightarrow1.25x+1.75y=92.50](https://img.qammunity.org/2023/formulas/mathematics/college/riprkpvjrepj23taxe0a9eyvea6lbnpxrr.png)
There is only one provided equation; therefore, we cannot determine x and y but just x in terms of y or vice versa. To determine x and y, more information is needed.
Solving for x,
![x=(92.50-1.75y)/(1.25)](https://img.qammunity.org/2023/formulas/mathematics/college/r9u6layfjegh6706nthw7t4sitpup6z8py.png)