Which pair of angles is a linear pair?
a. angle vqt and angle sqt
b. angle wqv and angle vqu
c. angle rqs and angle sqt
b. angle sqt and angle tqu

respond with the correct answer, and how you got the answer : )

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.