A football team gains 7 yards on one play, then loses 15 yards on the next. What is the team's total gain? *Write an addition problem and then find the answer.*

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?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

What is the total surface area of this square pyramid?