Campbell, a single taxpayer, has $400,000 of profits from her general store, which she operates as a sole proprietorship. She has $100,000 of employee wages, $40,000 of qualified property, and $500,000 of taxable income before the deduction for qualified business income. How much is Campbell's deduction for qualified business income?

Leading guitar string producer wound up inc. has enjoyed a competitive advantage based on its proprietary coating that gives its strings a clearer sound and longer lifespan than uncoated strings. one of wound up's competitors, however, has recently developed a similar coating using less expensive ingredients, which allows it to charge a lower price than wound up for similar-quality strings. wound up's competitive advantage is in danger due to a. a lack of perceived value b. a lack of organization c. direct imitation and substitution d. resource immobility