Answer: 3 5/8 below normal
Step-by-step explanation:
From the question, we are informed that Crater Lake is 1 1/4 inches below normal and that by the end of summer, it had decreased an additional 2 3/8 inches.
The new level will be:
= 1 1/4 + 2 3/8
= 1 2/8 + 2 3/8
= 3 5/8 below normal
