Sharnay brought 7/12 gallons of water to the beach. She drank 5/12 gallon of water. How much water is left? what is that answer in simplest form?

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?