Select from the drop down menus to correctly identify whether the given operation is closed or not closed with respect to each set of numbers
1. Real numbers are (closed/not closed) under multiplication
2. Irrational numbers are (closed/not closed) under division
3. Intergers are (closed/not closed) under subtraction
4. Positive rational numbers are (closed/not closed) under addition

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.

Point q is equidistant from the sides of ∠tsr. find m∠rst.

Find the product. type your answer in the space provided. use / for a fraction bar (example: 1/2) and ^ for an exponent (example: x^5). do not put spaces in your answer. (x -1 y 5)^2 · (2xy -2)^5