50 points
Julianne opens a dance studio her start-up cost for the building, advertising, and supplies total $52,000. Each day, she spends $680 on operating costs (like utilities and wages). She earns 960 per day from her student’s lesson fees.
Part A: Write an equation or inequality to represent this situation. Let d be the number of days.
Part B: When will Julianne begin making a profit? Show all the work.