Which equation applies the associative property of multiplication? ​A) 1/2⋅(5/8+3/6)=(1/2⋅5/8)+(1/2⋅3/6) ​
B) ​(−4/11−2/3)−3/4=−4/11−(2/3−3/4)​ ​C) −12/5⋅(7/12⋅1/9)⋅8/5=(−12/5⋅7/12)⋅( 1/9⋅8/5) ​
​D) 4/9⋅(−3/8)⋅9/4=4/9⋅9/4⋅(−3/8)

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm