Answer:
7.11 -7.1
-7.1
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
D.- ac
Step-by-step explanation:
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The original air present after 8 breaths will be equal to 179.81 ml.
<h3>What is an equation?</h3>
 
The equation in mathematics is the relationship between the variables and the number and establishes the relationship between the two or more variables.
It is given in the question that:- 
During normal breathing, about 12% of the air in the lungs is replaced after one breath
If the initial amount of air in the lungs is 500 mL 
how much of the original air is present after 8 breaths?
The calculation for the eduction of the air will be done by the following equation:-

=179.88 ml
Hence original air present after 8 breaths will be equal to 179.81 ml.
To know more about equations follow
brainly.com/question/2972832
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Answer:
$412.92
Step-by-step explanation:
You are going to want to use the compound interest formula, which is shown below.

<em>P = initial balance
</em>
<em>r = interest rate
</em>
<em>n = number of times compounded annually
</em>
<em>t = time
</em>
<em />
The first step is to change 4% into its decimal form:
4% ->  -> 0.04
 -> 0.04
Now plug in the values:


It would  be worth $412.92
 
        
             
        
        
        
The one represents the number you color in and the 4 represents how many boxes you have