Which list names the sides of polygon ABCD? AB, BD, DC, CA
BC, BA, DA, DC
AB, AC, AD, BD
BC, CD, DA, AD

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?

What is always true when two whole numbers are subtracted?

What is the sum of 25x + 15y and (-18x - 6y)