A) 3(x + 9) b) 4(x - 1)
c) 5(5x + 2)
d) 8(3x - y)
please do this i need it for an assignment

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