Question

Write the set in set-builder notation.


the set of all positive multiples of 20



a.

{x | x is even}

c.

{x | x < 0}


b.

{x | x is a multiple of 20 and x is positive}

d.

{x | x is a multiple

Answer 1

d. x is a multiple of 3

Answer 2

I think it is option b)