Which of the diagrams below represents the statement “if it is a square, then it is a quadrilateral”

Solve the equation x/4 - 5= -8 -27 -12 -7 12

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36