Answer:
Step-by-step explanation:
A. The measure of RS
As both polygons are similar, corresponding sides will be same
The difference of the expression
is 
<h3>How to determine the difference?</h3>
The expression is given as:

Factor the denominators of the expressions:

Apply the difference of two squares to x² - 9

Take LCM

Hence, the difference of the expression
is 
Read more about expressions at:
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Answer:
-45 to -71,, 26 degrees change in the temperature
Step-by-step explanation: