8 Determine whether the ratlos given in the first column are equivalent or not. Ratios 11/7 3/5 1/8 2/9 and and and and Yes No 77/63 45/75 10/80 18/81

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.