Paper is sold in packets labelled 80g/m². This means that a sheet of paper of area 10000 cm as a mass of 80g
The thickness of each sheet is 0.11mm.
What is the density of the paper?

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?

Aphysical change is a change in the size, shape,, or stafe of matter true or false

Simple machines can a. increase force only b. decrease force only c. increase or decrease force