Out of 32 students in a class 5 say they will ride there bike to school. based on the results how many students rode there bike to school out of 800

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

Adoughnut shop charges $0.50 for each doughnut and $1 for a carryout box. shirley has $10 to spend. which inequality can be used to find d, the number of doughnuts she could have bought if she also wants them in one carryout box?