At a certain middle school, 32% of the boys play football, and 18% of the boys play both football and basketball. What is the probability that a boy at this middle school plays basketball given that the boy plays football?

Sam sells not necklaces for $10 each. each necklace cost her $5 to make. she also has $5,000 in fixed costs per year for her jewelry business. how many necklaces must she sell in order to make a profit of $1,000 in one year?