A laptop computer costs $356.75 when it is new. The value of the computer is expected to change by -11 3/4 per year. What is the expected value, to the nearest cent, of the computer after 3 years.
Since it goes down 11 3/4 a year that means it goes down $11.75 a year. Then you times $11.75 by 3 and get $35.25 so then you just subtract $35.25 from 356.75 and you get your answer $321.50!