The answer is C. 16,200 cubic feet.
Hope I helped !!!
Answer:

Step-by-step explanation:
We are given the following in the question:
Let the equation:

be the linear equation that represent temperature at an elevation x.
Temperature at 6000-foot level = 76 f

Temperature at 12000-foot level = 49 f

Solving the two equation, we get,

Thus, we can write the linear equation as:

Answer: 2/5
Step-by-step explanation:
xy^2
--------
5
If x = 2 and y = 1
x * y^2 2 × 1^2
----------- -----------
5 5
2
---
5
(x
1
,y
1
)=(2,3) and (x
2
,y
2
)=(4,7)
by midpoint formula, coordinates of mid point =(
2
x
1
+x
2
,
2
y
1
+y
2
)
=(
2
2+4
,
2
3+7
)=(
2
6
,
2
10
)=(3,5).