At present, the highest peak of the Appalachian Mountains is 6,684 feet. Millions of years ago, before weathering and erosion had occurred, the highest peak was about 30,000 feet. What is the difference between the highest peak millions of years ago and the highest peak today? Explain how you know your answer is reasonable. Enter the correct numbers in the boxes to show the answer and to complete the explanation.

Step-by-step explanation:

in this problem, we are expected to solve for the change in height of the Appalachian Mountains

given that

the initial height was = 30,000 feet.

the current height is=6,684 feet.

Due to erosion the change/difference in height is give as

change/difference=30000 -6684

change/difference=23316ft

this means that for millions of years ago 23316ft of Appalachian Mountains have been eroded

12

Step-by-step explanation:

9x - 24 = 4x + 36

-4x           -4x

5x - 24 = 36

    +24     +24

5x = 60

5       5

x = 12