Which of the following equations has no solution? 5x + 20 – x = 7(3 + x) – 3x
x + 20 – 5x = 7(3 + x) – 3x
5x + 21 – x = 7(3 + x) – 3x
5x + 20 – 7x = 7(3 + x) – 3x​

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

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.