Help? no links (or reported) and plz do it right xD

Every rhombus is a square. true false

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)