Answer:
180%
Step-by-step explanation:
The relationship between the elapsed time, t, in days, since Nina uploaded the video, and the total number of views, V(t), is modeled by the following function:

This is an exponential growth function with a growth factor of 1.8.
Changing 1.8 to percentage, we have:
1.8*100=180%
Therefore, Every day, <u>180%</u> of views are the total number of views of the video.
That means, for each day, the number of previous view is increased by 180%.