The jelly bean jar has a radius of 6.2 cm and a height of 18.3. using the two given boxed for reference what would be a good estimate for the number of jelly beans in the jar?

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.