There could be 25 bags with 2 blueberry scones in each and 3 cranberry scones in each. This is because 25 is a factor of both amounts so you would divide each by 25. That leaves it with 2 blueberry scones and 3 cranberry scones.
Trend lines are lines used to approximate the general shape of a scatter plot. A positive trend line tells us the scatter plot has a positive correlation. A negative trend line tells us the scatter plot has a negative correlation.