If a dog runs 2/3 miles in 2/15 hours what is it’s rate in mile per hour

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.

Solve the formula ax+ by = c for x.

Need same math paper but the back now i hope your able to read it cleary i need with hw