When Owen left his house in the morning, his cell phone battery was partially charged. Let B represent the charge remaining in Owen's battery, as a percentage, t
hours since Owen left his house. A graph of B is shown below. Write an equation for
B then state the x-intercept of the graph and determine its interpretation in the
context of the problem.

Two trains leave a station on different tracks. the tracks make an angle of 130°, with the station as a vertex. the first train travels 100 km and makes its first stop at point a, while the second train travels 200 km and makes it first stop at point b. how far apart are the trains when both are at their first stop? round the answer to the nearest integer. a) 65 km b) 139 km c) 224 km d) 275 km