Ok so n=70, I hope it’s right:)
Answer:
The difference of <u>12,583 feet</u> in elevation between the mountain and the valley.
Step-by-step explanation:
Given:
A mountain is 12,408 feet above sea level, and a valley is 175 feet below sea level.
Now, to get the difference in elevation between the mountain and the valley.
As mountain is above sea level = 12,408 feet.
And valley is below sea level = 175 feet.
So, by adding we get the difference in elevation between the mountain and the valley:


Therefore, the difference of 12,583 feet in elevation between the mountain and the valley.
Okay, I attached the image, if you have questions about graphing, go to use desmos
Option B:
The solution to the given inequality is x ≤ 8.
Solution:
Step 1: Given expression is the inequality.
9x ≤ 72
Step 2: To find the solution to the inequality:
9x ≤ 72
Step 3: Divide by 9 on both sides of the inequality.

Step 4: The solution is x ≤ 8
The solution to the given inequality is x ≤ 8.
Hence Option B is the correct answer.