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you got any idea what this means?

Not really, this is completely new to me.

that is not true, since \(1+1=2\) and \(2\) is not in your set

it also not closed under multiplication since \(1\div 0\) is not a number

DIvision or subtraction then?

addition, not closed
division, not closed
subtraction, not close since \(-1-1=-2\)

it is closed under multiplication though

Multiplication
Subtraction
Division
all of the above
is what I have for answers

Oh no..

Its a stupid question. thats what it is lol Which one would you choose?

i guess i would choose "division" but it really says "not closed" right?

if you multiply any two of those you get another one of those for sure

It does say not closed!

so it is closed under multiplication
don't choose "all of the above"

ok pick division i guess and write them and tell them it is a mistake
on line class?

Yeah! I'll tell them!

what system?

Could you help me with one more?

sure i can try

wava k12

i thought they new better in washington