HELP ME PLEASE!!! I saw this 2 years ago, I don't remember how to do this and my teacher wants me to do this like HOW THE HELL AM I SUPPOSED TO DO THIS​

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

How do you write y-10=2 (x-8) in standard form