For a recently released movie, the function y = 119.67(0.61)x models the revenue earned, y, in millions of dollars each week, x, for several weeks after its release

After thorough research, there exists the same question that ask:
Based on the equation, how much more money, in millions of dollars, was earned in revenue for week 3 than for week 5?

The question will give a high value but nevertheless, it is still answerable.

Function is equal to 73^x
For 3 weeks , we will get
= 73^3 - 73^2

For 5th week = 73^4 x 72

Based on the equation, it is obvious that we get more in 5th week compared to 3rd of around 2 billion.