They must sell 10 baskets to break even because
75=(20-12)x
Since the cost of the table is $75 the cost of each basket is $12, they are making a net profit of $20-12 per basket if they are selling each basket for $20. In that case, they must sell at least 10 baskets to break even. If they sell 10 baskets, they will make $80 to break even with the $75 cost for the table. They cannot break even by selling 9 baskets because they will only make $72 in that case.