Question 1130051
.


<pre>
<U>Answer</U> (a) :  Expression to evaluate the average change in temperature per minute is 

              {{{(25 - (-23))/8}}}.



<U>Answer</U> (b) :  The mean change in temperature per minute is

              {{{(25 - (-23))/8}}} = 6 degrees of Fahrenheit per minute.
</pre>

---------------


To answer the question, you need first to evaluate the temperature difference.


It is  (25 - (-23)) = 48 degree of Fahrenheit .


Then you need to divide this difference by the time of 8 minutes to get the rate of the temperature change per minute.


================



It was me, who answered to you earlier

<pre>
https://www.algebra.com/algebra/homework/expressions/expressions.faq.question.1130005.html 
</pre>and I do not regret about that my answer - it was correct, polite, appropriate, relatable and pertinent.



And please, do not forget to post your "Thanks" to me for this solution,

as well do not forget to do it in the future.



Remember, that from me you obtain the best possible answers and solutions.