Question

Roberto is dividing his baseball cards equally among himsef, his brother, and his three friends. roberto was left with nine cards. how many cards did roberto giveaway.

Answer 1

36 Cards

Explanation:

I already did it.

Answer 2

36 Cards given away
Roberto has nine so that means everyone else also has nine since they're equal
Therefore
9 cards x 4 other people= 36 cards given