1. Kim invests $3000 to start her own hair salon. Each hair cut cost her $1.75 in supplies. She charges customers $15 for each haircut. a. Write the equation for costs and income b. How many haircuts until Kim breaks even? c. How much profit with Kim make at 350 haircuts? 1 2. A fashion designer makes and sells hats. The material for each hat cos t s $5.50 . The hats sell for $12.50 each. The designer spends $1400 on advertising. How many hats must the designer sell to break even? How many hats must be sold to achieve $5000 in profits? 3. Producing a musical cost $88 , 000 plus $5900 per performance. One sold-out performance earns $7500 in revenue. If every performance sells out, how many performances are needed to break even? If variable costs were reduced by 20% , how many performances are needed to breakeven