An astronomer wishes to measure on a photograph the distance between the image of a certain star and three star other star images nearby, if 8 images are nearby how many choices of the three stars does he have?

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?