we have the following:

solving for b:

therefore, the answer is 16
Answer:

Step-by-step explanation:
Given function:

where:
- h = height (in feet)
- t = times (in seconds)
Rewrite in the form 
The quickest way to do this is to expand
and compare coefficients with the original function.

Comparing coefficients with 



Therefore, substituting the found values into the equation:

Answer:
the answer is 2,500
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
The lines are parallel, this means that they will never meet.
If you keep the radius the same and double the height, you find that by experimentation with this a few times, doubles your volume as well. That means that instead of 1/3 pi r^2 h, we will have 2/3 pi r^2 h. Your answer B.