I NEED HELP PL Which of the following shows 2 + (x + 3y) rewritten using the Associative Property of Addition?

A.) 2 + x + 3y
B.) (2 + x) + 3y
C.) 2x + (3 + y)
D.) x + (2 + 3y)

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