Which point lies below the x-axis?

a. (1,-3) & (-1,-3)
b. (1,-3) & (-1,3)
c. (-1,3) & (-1,-3)
d. (1,3) & (-1,-3)

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

Two lines parallel to the same plane are parallel to eachother

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x