A cartoonist has 150 pieces of original

artwork to give to his publishers and
some fans who won his online contest.
He plans to send 30 drawings to his
publishers. He is sending at least
3 pieces of artwork to each contest
winner. How many contest winners
could there be?

There are 120 pieces of artwork left to give to the contest winners (150 total pieces - 30 pieces sent to publishers = 120 pieces left).

If each contest winner receives at least 3 pieces of artwork, then the number of contest winners can be calculated by dividing the remaining artwork by the minimum number of pieces each winner receives:

120 pieces / 3 pieces per winner = 40 contest winners

Therefore, there could be 40 contest winners in total.