Convert 15 meters per second into kilometers per hour. 4.2 kilometers per hour
9 kilometers per hour
42 kilometers per hour
54 kilometers per hour

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.

Need on this geometry question. explain how you did it.

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'