Which expression represents the positive solution of x ^ 2 = 8?

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

What is the domain of the given function? {(3,-2), (6, 1), (-1, 4), (5,9), (-4, 0); o {x | x= -4,-1, 3, 5, 6} o {yl y = -2,0, 1,4,9} o {x|x = -4,-2, -1,0, 1, 3, 4, 5, 6, 9} o y y = 4,-2, -1, 0, 1, 3, 4, 5, 6, 9}