There are 100 dekameters in 1 kilometer. How many dekameters are in 8.5 kilometers?

What are the steps to solving the inequality 3b + 8 ≥ 14?

Is the figure congruent? yes or no?

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.