John wants to invite around 78,000 college students to a tournament. Which of the following sets of college student populations has a sum closest to 78,000? A. 18,432; 32,761; 27,390
B. 15,791; 47,318; 27,522
C. 22,109; 38,569; 32,780
D. 27,420; 47,338; 22,183

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?