The way of writing a number as the sum of the values of its digits is called .

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?