The water level is a number that indicates whether the level is above or below normal using positive or negative values. After a heavy storm, the water level of a lake is −5.6 feet. This level is 1/2 times 1.7 feet more than the previous water level. What was the previous water level? Drag and drop a value to the box to correctly complete the statement.
choices:
a. 1.1
b. 4.5
c. 9.5
d. 12.9
