Answer:
C. 50
Step-by-step explanation:
x+y=90
x=2y-30
90-y=2y-30
3y=120
y=40
90-40= 50
It is the square of the input value
Answer:
yes Wyatt is very correct
Square is always a type of rectangle! <span>So a square is a special kind of rectangle, it is one where all the sides have the same length. Thus every square is a rectangle because it is a quadrilateral with all four angles right angles. However not every rectangle is a square, to be a square its sides must have the same length.</span>