Answer:
25 Seconds.
Step-by-step explanation:
You need to know how many seconds it takes to read the bottom of the lake.
If, each second, the anchor is falling 0.7 feet, then you need to know how many times it falls 0.7 feet.
This is done by dividing 17.5 by 0.7, which is 25 seconds.
The answer i think is 11, since it is the number between the ammounts, 8 being the lowest and 12 being the highest
