What is the image point of (4, -2) after the transformation ry=-x•D1/2

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

What is the upper quartile in the box plot?

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.