Respuesta :

Answer:

A-B means which is only in A not in B

Step-by-step explanation:

A-B={1,3,5,7,9}-{1,2,3,4,5,6,7}

={9}

(A-B)UC={9}U{3,6,9,12,15}

={3,6,9,12,15}

Answer:

the answer is a and b and h

thank