At the bake sale jonah sold 4 cakes for 8 dollars each and 36 muffins for 2 dollars each

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation

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