(answer ! )
name the property shown
(9 + 4) + 7 = 9 + (4 +7)

Let w=23 . what is the value of w + 45 ?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m