Answer: 59% (choice D)
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Step-by-step explanation:
x = length of the documentary (in minutes)
y = percent of people who finish watching the documentary
We plug in x = 115 to estimate y
y = -0.414*x + 106.55
y = -0.414*115 + 106.55
y = 58.94
y = 59%
We estimate approximately 59% of the viewers will finish watching a documentary if it is 115 minutes long.
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Side note:
115 min = 60 min + 55 min = 1 hour + 55 min
In other words, this movie is 5 minutes short of 2 full hours (120 min).