Answer:
The water level after 2 weeks is 0.8 centimeter less than original water level.
Step-by-step explanation:
Let initial water level be a.
During a hot summer week the water level in Wei's pool decreased by 1.9 centimeters.
New water level = a - 1.9
Wei added water to the pool increasing the level by 3.5 centimeters.
New water level = a - 1.9 + 3.5 = a + 1.6
During the next week the water level decreased by 2.4 centimeters.
New water level = a + 1.6 - 2.4 = a - 0.8
The water level after 2 weeks is 0.8 centimeter less than original water level.
