(answer asap 99 points) julianne opens a dance studio. her start up costs 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 students' 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 profit? show all the work you did to arrive at your answer.