Give an example to show that the value of 2(a + b) is a multiple of 4.
a and b are odd numbers.

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

Polygon mnopq is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image m′n′o′p′q′. the coordinates of point m are (2, 4), and the coordinates of point n are (3, 5). the slope of is .

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.