Agroup of friends went on a hiking trip. they wanted to hike a total of 38 miles. they want to complete 25 % of the hike by the end of the first day. about how many miles should they hike the first day?

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