The first one is similar to the triangle
I think the answer is 16=x
One movie-related statistical question would be the length of people's favorite movies (in minutes). This would contain variability since people would have different favorite movies, which would have different lengths.
One movie-related question that does not yield variability is the number of movies released in 2018 that grossed more than $100 million. This would be a fixed fact, so there is no variability about this.
8 quarts + 4 pints + 8 cups will make 3 gallons
