What expression must the center cell of the table below contain so that the sums of each row and each column are equivalent? -4 9x 2x
7x ? -3x
4x -5x 8x

Which transformations could have occurred to map △abc to △a"b"c"? a rotation and a reflection a translation and a dilation a reflection and a dilation a dilation and a rotation

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?