Question

Which sets of numbers are closed under addition?
Choose all answers that are correct.

a. {0, 2, 5, 8}

b. even integers

c. rational numbers

d. {0}

Answer 1

how many have to be correct

Answer 2

any amount

Answer 3

no i mean like do i choose a or b or do i choose a and b

Answer 4

a and b if theres more then one

Answer 5

ok well...

Answer 6

b and c might be correct because its asking which are in addition however im not completely sure

Answer 7

ok thanks heres ur medal -.-

Answer 8

your welcome.