Someone mind helping an old feller out?

Determine the relationship of ab and cd given the following points

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?

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.