"ana and her friends are hiking a trail that is 8 1/4(fraction one over four) miles long. they want to finish the trail in 3 hours. how many miles must they hike each hour? " : : note; don't answer the question, answer this; would i be using multiplying or dividing?

Standard deviation of 19,29,21,22,23

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.

With this question, the answer with the red arrow is incorrect!