Elena goes for a long walk. This graph shows her time and distance traveled throughout the walk. What was her fastest speed she walked on a segment, in miles per hour?

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.