astronomers discover a new comet that follows a highly elliptical orbit. what is its eccentricity likely to be?

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories. if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?

What are the costs and benefits of leaving home after high school?

Scientists observed a rock stratum with fossil. if mollusks evolved before arthropod, where will their fossils be found.