Find the exact area of the sector of the circle with the given radius and central angle.

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

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Simplify. 3(4+4x) (type your answer in with no spaces)