Alicia and jeremy weigh a cell phone on a digital scale. they write down 113 but forgot to record the unit. which unit of measurement is correct

Rose and andrew are financing $128,000 to purchase a condominium. they obtained a 15-year, fixed-rate loan with a rate of 5.05%. they have been given the option of purchasing up to four points to lower their rate to 4.81%. how much will the four points cost them?