The person above me is right!! I kinda got confused because i thought it was asking what sea level is the diver now BUT its asking for the elevation, so you need to subtract.
Answer:

Step-by-step explanation:
We know that

Given :

So 4 is the opposite side of theta.

We use the Pythagorean theorem to find for the adjacent side.
Answer:
The base of the window is 7.5 feet long.
Step-by-step explanation:
The area of a parallelogram can be found with the formula A = bh
Plug in the known values to get 30 = 4b
30 = 4b
30/4 = b
7.5 = b
(B) 10 cal im pretty sure can i please have brainiest answer