Tim and sara invest $12,000 in equipment to print yearbooks for schools. each yearbook costs $5 to print and sells for $15. how many yearbooks must they sell before their business breaks even?

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?