Find the measure of each interior angle and each exterior angle of a regular nonagon (a nine-sided polygon

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?

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog