Brian is interested in keeping track of the battery life of his laptops. the average battery life he recorded is 48%. if the sum of his battery lives are 288%, what is the total number of laptops he owns?

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