Which of the following is an example for a physical property that can be exploited for sparation?

Annie walked her dog 2 1/4 miles from her house to the dog park and 3/7/8 miles around the park. then she walked the same distance home. how many miles did she walk in all?

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.