Across-country skier covered 1/3 of her race in one hour, 2/5 of the race the next hour, and the remainder of her race in the third hour. what fraction of her race did the skier cover during the third hour of the race?

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?