Which expression shows the correct way to expand (6x-6)^2?

He expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. if the length is fraction 2 over 3 unit and the width is fraction 1 over 3 unit, what is the perimeter of the rectangle in units? fraction 2 over 3 unit 1 unit 1fraction 2 over 3 units 2 units

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

What is the standard form of -5x^2+2x^4-11+x^3+3x