please help!

23. Maps A partial map of a town is drawn on a graph where units are measured in feet. Line HI represents Main Street and line CM represents 4th Avenue. Point L represents the library, point C represents the center of town, point H represents the high school and point M represents the medical center. 700 500 C 300 H M -100 100 300 500 700 900 a. Find the distance between the medical center to the high school. b. How far away is the medical center from the center of town along 4th Avenue? c. What distance do you walk if you go from the medical center to the library along 4th Avenue and Main Street? Round your answer to the nearest foot. d. Is 4th Avenue perpendicular to Main Street