Which equation shows the relationship 30% of 140 is x?

What is the perimeter of square abcd? units units 28 units 37 units

Pls brainliest will be awarded if answer is correct

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.