The average change of altitude per minute would simply be
the ratio of distance descended over time. That is:
average change of altitude = distance / time
average change of altitude = 0.44 mile / 0.8 minutes
<span>average change of altitude = 0.55 mile / minute</span>
10000x8%= $800 anually
anually=yearly
800x18=14400
The x intercept would be -3 I believe, please mark me as brainliest if this helps and comment if you would like an explanation