Answer:
[tex]-9\dfrac{5}{8}[/tex] inches.
Step-by-step explanation:
The level of a lake was 8 inches below normal.
Now, it is given that the water level decreases [tex]1\dfrac{1}{4} = 1.25[/tex] inches in June and [tex]2\dfrac{3}{8} =2.375[/tex] inches more in July.
Therefore, the new level of water with respect to the normal level will be
= - 8 - 1.25 - 2.375
= - 9.625 inches
= [tex]-9\dfrac{5}{8}[/tex] inches. (Answer)