Help pls ;(
It’s “justify solution paths of linear equations” the pic is attached !

The highest point on earth is the peak of mount everest if you climb to the top you would be approximately 29,035 feet above sea level at remembering that amount is 5280 feet percentage of the height of the mountain would you have to climb to reach a point 2 miles above sea level

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Im literally having a mental breakdown