If the sum of the first n terms of the series 4+7+10+ is 209, find n​

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

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

What numbers are included in the set of integers? what numbers are not included?