Cassius corporation has provided the following contribution format income statement. assume that the following information is within the relevant range. sales (7,000 units) $ 210,000 variable expenses 136,500 contribution margin 73,500 fixed expenses 67,200 net operating income $ 6,300 the number of units that must be sold to achieve a target profit of $31,500 is closest to:

Atennis club charges a monthly membership fee of $150 and charges it members $10 per hour to use a court. there's also $500 fee to become a member. stella joined the tennis club last spring, and she has been a member for 5 months. she has been playing 10 hours of tennis each month. stella values an hour of her time at $20. during a boring afternoon meeting, stella thinks about reserving a court to work on her serve for an hour tonight. what's stella's opportunity cost of working on her serve for an hour?