Are adef and arpq congruent?
yes. adef can be mapped to arpq by a reflection
across the x-axis followed by a translation 2 units
left.
yes. adef can be mapped to arpq by a 180°
rotation about the origin followed by a translation 2
units down.
no. adef cannot be mapped to arpq by a rigid
transformation or combination of rigid
transformations.

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.