Judy and Lucy are planning to have a bakery store. They calculated and found that the initial investment is $55,000, property lease is $5,500 every month, baking materials are $3,000 every month, and variable cost is $6,000. They estimated that each customer would spend $150 per month. a. Help Judy and Lucy calculate how many customers they must have to reach a breakeven. b. If they want to make profit of $1,500 per month, and have 90 customers, what percent should total variable cost be lowered by?