2 hundredths, 8 hundred, 1 ten, 8 tenth, 3 thousandths, 6 thousand, 6 one, as a decimal number

.2   .08    .1    .8     .003    .006     6.0 (unless you want them all together than this is wrong)

Step-by-step explanation:

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