On a map the scale shown is 1 inch =20 miles. If a city is 900 square miles what is the area of the city on the map

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?