The school has 270 classrooms, hope this helps.
9(30) = 270
The answer is D because it lines up with the y intercept
A range of 2 reveals that the smallest and largest data values are 2 units away from each other.
<h3>What does the range reveal?</h3>
Range is the difference between the highest and lowest values of a set of observations. Range is a measure of variation.
Range = highest value - lowest value
To learn more about range, please check: brainly.com/question/12372689
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2(books)*$3.50=$7.00
4(books)*$5.25=$21.00
Total bill=$34.00
$34.00-($7.00+$21.00)=$6.00
The 3 books was sold for $6.00 but its original selling price is $6.00*2 which is $12.00 reason being the books was sold for half the original price.
