To bike rental companies have different pricing systems company a charges a flat fee of four dollars +2 dollars a mile Company B does not charge a flat fee but charges $2.80 per mile driven at what distance do both companies charge the same amount

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?