What single transformation maps abc onto a'b'c'?

What is the missing constant term in the perfect square that starts with x^2 -20x

The distance between two cities is 368 miles. if the scale on the map is 1/4 inch=23 miles, what is the distance between the cities on the map?

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.