Astudents skipped a step when he tried to convert 720 seconds into hours and he got the following incorrect result

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?