Answer:
Explanation:
Demontra has to divide negative 100 by negative 2, which means she has to do:
![\Rightarrow \frac {-100}{-2}](https://img.qammunity.org/2020/formulas/mathematics/college/1xavmlgg87sj0m3c0br1325ekt070ylhcc.png)
This can be written as:
![\Rightarrow \frac {-1* 100}{-1* 2}](https://img.qammunity.org/2020/formulas/mathematics/college/syhc5psez09a5wdwh12cs14mvw2ga7ycl2.png)
-1 / -1 = 1
Also, 100 / 2 = 50
So,
![\Rightarrow \frac {-1* 100}{-1* 2}=50* 1=50](https://img.qammunity.org/2020/formulas/mathematics/college/2v71cv17etgxntj67w6anaoq3gpedcdiwp.png)
She got -200 which is wrong as she muliplied the numbers which is also wrong as -100 × -2 = 200
She did not done anything right.