If z
is a standard normal random variable, the area between
z
=
−
2.80
and
z
=
−
1.40
is the area between
z
=
1.40
and
z
=
2.80
.

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

Answer question above and explain each step : )

The sum of two numbers is 86, and their difference is 20. find the two numbers