The chemical symbol Ca represents
A chlorine
B cesium
C carbon
D calcium

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

Acar moves a distance of 50.0 km west, followed by a distance of 64.9 km north what was the magnitude of the displacement of the car, in units of kilometers?