Hi Daralava,
How does the troposphere differ from the stratosphere?
There are 2 major difference between the troposphere and the stratosphere, which is that the stratosphere is higher located than the troposphere, also the stratosphere is also warmer becase it receives more solar radiation the the troposphere.
Asteroid: is a large rocky body in space, in orbit around the Sun. Meteoroid: is a much smaller rocks or particles in orbit around the Sun, therefore I'd say B.
Based on the calculations, the pressure of this gas sample at 27°C is equal to 0.17 atm.
<h3>How to determine the final pressure.</h3>
In order to calculate the final pressure of an ideal gas at constant volume, we would apply Gay Lussac's law.
Mathematically, Gay Lussac's law is given by this formula;

<u>Where:</u>
- k is the constant of proportionality.
Substituting the given parameters into the formula, we have;

Final pressure = 0.17 atm.
Read more on temperature here: brainly.com/question/888898
Answer:
The inequality symbol is incorrect because she can spend up to and including $65.
The expression 5. 50b + 7. 5 is correct because $5. 50 per book is 5. 50b and that is added to the shipping fee of $7. 50 to determine the total purchase price.
Explanation:
The inequality should be 5.50b + 7.5 ≤ 65 because she can use less than $65 or all $65 to spend on books.
Also, the shipping fee is for all the books she buys combined, not for each individual book so the left side of the inequality should read 5.50b + 7.5.