What is another word used to state mantle

Which set of reflections would carry trapezoid abcd onto itself? a) x-axis, y=x, y-axis, x-axis b) x-axis, y-axis, x-axis c) y=x, x-axis, x-axis d) y-axis, x-axis, y-axis, x-axis

Which expression will have the same sum as 3_8 + 1/4?

Three times the sum of a number and seven is negative thirty-six. what is the number?