Janet is writing a book. She writes 3 pages every 2 days. If she continues at the same pace, how long will it take her to write a 400-page book?
Which proportion could be used to solve this problem?

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