Answer:

Step-by-step explanation:
Let
h-----> the high of the balloon
we know that
In the right triangle of the figure



Yea u have to do that the most effective is the 10 bc penny is right
The question ask to find and choose among the following choices the best function that is correct for Jan's purpose and the new growth rate and the best function would be letter f(x)=4(1.15)5x, growth rate is 15%. I hope you are satisfied with my answer and feel free to ask for more