Due to evaporation, the water level in Wesley's aquarium dropped 2 cm a week during the first three weeks in July. What integer represents the change in water level during the three-week period?

-2 cm.

-3 cm.

-6 cm.****

-9 cm

Right.

Thanks

You're welcome.

To get the change in water level during the three-week period, you need to calculate the total amount the water level dropped.

Given that the water level dropped 2 cm each week for 3 weeks, you can calculate the total change by multiplying the drop per week by the number of weeks.

So, -2 cm/week * 3 weeks = -6 cm.

Therefore, the integer that represents the change in water level during the three-week period is -6 cm.