Correlation is what you're looking for. Basically, it means that the two numbers are somehow related. Some examples of correlation would be positive correlation, negative correlation, and no correlation.
:)
The x (the second one) has a one in front of it so 5x *1x=5x so 5x-4 is the answer
Answer:
The equation you would use is лr² (pi times radius squared).
The area of the stage would be 1963.5 square meters or 625л square meters