Which number can you add to 15 to get a sum of 0? (-10 -15 15 0 )

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Write two subtraction equations that are equivalent to 5 + 12 = 17.

When a 757 passenger jet begins its descent to the ronald reagan national airport in washington, d.c., it is 3900 feet from the ground. its angle of descent is 6 degrees. how far must the plane fly to reach the run way? a. 37,106 ft b. 37,310.4 ft c. 23,456.6 ft d 2,492.7 ft