Thank you for posting your question here at brainly. I assume the question should be "<span>Find the number indicated". below is the answers:
</span>B U C means B union C which combines them: <span>{Frans, Sarie, Tina, Klaas, Henrika, Hans} note that there is no need to write Frans twice. </span>
<span>∩ means intersection which is only what the two sets have in common, in this case: </span> <span>{Frans, Sarie} </span>
