Line segment ST is rotated 90° counterclockwise to create segment S'T'. Point L on ST is defined by coordinates (x, y). What are the coordinates of

the corresponding point L'on segment S'T'?

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.