Whats the decimal of a ratio of 1: 3

Eastern europe’s population growth can be attributed to these factors. select all that apply migration

The layers of earth are based on what two sets of characteristics?

Afootpath is to be constructed in a park in the shape of a parallelogram. when a coordinate plane is laid over a map of the park, the vertices of the footpath are (-4,2) (8,2) (11,7) and (-1,7). what is the perimeter of this path