The answer is probably 30 or 60
Let's call the unknown amount of money <em>x</em>
Betty spend 5/12 of her money (5/12)x and had 42 dollars left. Translated,
![x - \frac 5{12} x = 42](https://tex.z-dn.net/?f=x%20-%20%5Cfrac%205%7B12%7D%20x%20%3D%2042)
Solving,
![x(1 - \frac 5{12}) = 42](https://tex.z-dn.net/?f=x%281%20-%20%5Cfrac%205%7B12%7D%29%20%3D%2042)
![\frac{7}{12} x = 42](https://tex.z-dn.net/?f=%20%5Cfrac%7B7%7D%7B12%7D%20x%20%3D%2042)
![x = \dfrac{12}{7} \cdot 42 = 72](https://tex.z-dn.net/?f=%20x%20%3D%20%20%5Cdfrac%7B12%7D%7B7%7D%20%5Ccdot%2042%20%3D%2072)
Answer: $72
An inequality statement is a statement where two values are NOT equal.
They equal 5*5=25 and 35*35=1225