If we say dilation, we mean to say that the endpoints or the corners of the polygon is move by the number of scale factors away from the original point. Unfortunately, you missed to give here an illustration of both quadrilaterals, it would have been easy for us to answer this item should we have been given with the dimensions.
We need 80 liters of 45% alcohol We have 30% alcohol and 60% alcohol. This is relatively easy. We need equal amounts of each. There fore we mix 40 liters of 30% alcohol and 40 liters of 60% alcohol.
