HELP ASAP I WILL MARK BRAINLIEST please help on the last two

Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

Math i have no idea how to do a and b