Which measure of central tendency would the store owner use if she wanted to argue that the employees are paid well? A. the mean B. the median C. the mode D. the range

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.