Write down an (in)equality which describes the solid ball of radius 3 centered at (4,4,−3). It should have a form like x2+y2+(z−2)2−4>=0, where you use one of the following symbols ≤,<,=,≥,>. The first blank is for the algebraic expression; the drop-down list gives the (in)equatilty.

Will give the box plots below show the math scores of students in two different classes: class a 55 72 75 89 95 class b 55 70 75 94 100 based on the box plots, which statement is correct? a: the median score of class a is greater than the median score of class b. b: the lower quartile of class a is greater than the lower quartile of class b. c: the upper quartile of class a is greater than the upper quartile of class b. d: the maximum score of class a is greater than the maximum score of class b.