12. Five marks exercise problems III

1. During summer, the level of the water in a pond decreases by \(2\) inches every week due to evaporation. What is the change in the level of the water over a period of \(6\) weeks?

 

The change in the level of the water \(=\)  inches

 

 

2. Find all possible pairs of integers that give a product of \(-50\).