A random sample of the students of a college is carefully constructed and all of the selected students are sent a survey form. 50% of the students return the form.
Identify all of the true statements among the following.
The results are probably biased.
This is an example of stratified sampling.
The results of the survey are unbiased because there was a random sample.
This is a volunteer sample.

i'm not entirely sure

step-by-step explanation:

if you ask home depot or lowe's they might be able to you out

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

i think its 7.6

if so your welcome