I know the answer is 21 feet, I just need to know how I got there. Thank you!

To ? nd out how many students are unhappy with the dining hall food, you distribute a survey. which method of surveying would produce the least amount of bias in your data?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

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?