Is the gcs of any to even numbers always even

Acompany is testing in comparing to lightbulb designs the box plot shows the number of hours that each lightbulb design last before burning out which statement is best supported by the information of the plot

Which term best describes the association between variables a and b

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle