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. positive integers are (closed, not closed) under subtraction. rational numbers are (closed, not closed) under multiplication. negative real numbers are (closed, not closed) under division. irrational numbers are (closed, not closed) under addition.

Not closed; closed; not closed; closed.

Step-by-step explanation:

If we subtract a larger positive number from a smaller positive number, we get a negative number.  This means positive integers are not closed under subtraction.  Example:  1-3 = -2.

Multiplying two rational numbers will give us a rational number as an answer. This means rational numbers are closed under multiplication.

If we divide two negative numbers, we get a positive number for our answer.  this means that negative real numbers are not closed under division.

Adding two irrational numbers will give us an answer that is an irrational number.  This means irrational numbers are closed under addition.

answer: i could not see part the question so ill explain how to get the answer

step-by-step explanation: for instance the distance she travele d is 10 and she traveled the same amout each mile so do 10 divided by how many miles she drove each time and you ge your answer.