How do you find the distance from a point on a graph to another point, when it is not a straight line?

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.