What is the wave speed of a wave that has a frequency of 50 Hz and wavelength of 0.20 m?

Which transformations could be performed to show that aabc is similar to aa"b"c"? a reflection over the x-axis, then a dilation by a scale factor of 3 a reflection over the x-axis, then a dilation by a scale factor of 1/3 a 180° rotation about the origin, then a dilation by a scale factor of 3 a 180° rotation about the origin, then a dilation by a scale factor of 1/3