Hmmm. I want to say... 28. Hope this helps :) Merry Christmas!
Answer:

Step-by-step explanation:
The volume of the prism is 252 cubic centimeters.
The volume of a rectangular prism is gotten by the formula:
V = l * w * h
where l = length
w = width
h = height
The height of the prism is 3 cm.
Let x be the width of the prism.
The length of the prism is 5 cm longer than the width.That is:
l = 5 + x
The volume of the prism is therefore:
V = (5 + x) * x * 3

This is the equation that models the volume of the tray in terms of x.
Answer: "13,000 books" represents the population.
"200" books represents the sample.
Step-by-step explanation:
- A population is the term that denotes a whole large possible group of individuals, objects, events or measurements.
- A subset of population is known as ample.
- When population is too large to the researcher , then it uses sample to represent the entire population.
Here, "13,000 books" represents the population.
"200" books represents the sample which is a subset of 13,000 books.
Just solve the equation, x + 0.15x + 0.06x = 15
1.21x = 15,
x = $12.39 (nearly)
$24.00. 6,000 divided by 500 is 12 times the $2 per 500 is $24