Question

Is the set of numbers that can be written as the product of 6 and an integer closed under subtraction?

A.
Yes, because the difference of any two multiples of 6 is equal to 6.

B.
Yes, because the difference of any two multiples of 6 is also a multiple of 6.

C.
No, and a counterexample is 6 – 6 = 0.

D.
No, and a counterexample is 6 – 18 = –12.

Answer 1

No, and a counterexample is 6 – 6 = 0.

Answer 2

thx

Answer 3

so a??

Answer 4

will someone help?

Answer 5

C

Answer 6

ok thx