I really need help
Which number sentence correctly solves this problem?
A plane was flying 29,087 feet above the earth. Then the plane went down 17,782 feet. How high was the plane flying above the earth then?
29,087 – 17,782 = 12,705
29,087 + 17,782 = 36,769
29,087 + 17,782 = 46,869
29,087 – 17,782 = 11,305