How to solve question question 9. e) ? including steps are appreciated!

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

If bill bought a home for $210,000 and he sold it a year later for $120,000 his percentage of loss is

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