Your younger sister decides she wants to open a lemonade stand outside of your apartment building. She wants to earn extra money to buy a bicycle that costs $150 more then she has already saved. The manager of the building wants her to pay $100 rent per month, due at the end of the month. How many cups of lemonade does she need to sell so that she can pay her rent and buy the bicycle at the end of one month?

• Cost per unit (cup of lemonade): $0.15
• Price per unit (cup of lemonade): $1.25

There are approximately 2 million households in Massachusetts, what is a reasonable estimate for market potential for AC units next year? What about the market potential for Starbucks coffee in Massachusetts? In each case, be sure to note the assumptions you made to calculate each estimate the way you did.