Multiply (x + 1)3 (x + 1)3 = (x + 1)(x + 1)2 = (x + 1)(x2 + 2x + 1) = x3 + x2 + x +

      2

  2 is to go somewhat to the top right of a because it is squared    

v= a h/3

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be