Answer:
You will get $4.36 back.
Step-by-step explanation:
You have to total the cost of the food and drink.
8.39 + 2.25 = 10.64
You give your total money to the cashier to pay for your goods.
10 + 5 = 15
The cashier will give you the refund or change back.
15 - 10.64 = 4.36 
 
        
             
        
        
        
Answer:
 <em>(n - 5)(n + 5) </em>
Step-by-step explanation:
a² - b² = (a - b)(a + b) 
n² - 25 = n² - 5² = <em>(n - 5)(n + 5)</em> 
 
        
             
        
        
        
Uhm, I'm pretty new to expanded form but I think it's something like:
(3 × 1/10) + (1 × 1/100) + (6 × 1/1000)
You can also write it as:
0.3 + 0.01 + 0.006
Let me know if you need working or anything!
        
                    
             
        
        
        
Answer:
<em>Test statistic </em>
<em>               </em> 
  
             t = <em>1.076</em>
Step-by-step explanation:
<u><em>Step(i):-</em></u> 
Given Mean of the Population (μ) = 8.0
<em>Mean of the sample (x⁻) = 8.25</em>
Given data 
                   8,9,9,8,8,9,8,7
Given sample size  n= 8
Given sample standard deviation(S) = 0.661
<u><em>Step(ii):-</em></u>
<em>Null hypothesis : H:  (μ) = 8.0</em>
<em>Alternative Hypothesis :H:(μ) > 8.0</em>
<em>Degrees of freedom = n-1 = 8-1=7</em>
<em>Test statistic </em>
<em>               </em> <em></em>
<em></em>
<em>              </em> <em></em>
<em></em>
<em>            t =  1.076</em>
<em>Critical value </em>
<em>                    t₍₇,₀.₀₅₎   = 2.3646</em>
<em>The calculated value   t =  1.076 < 2.3646 at 0.05 level of significance</em>
<em>Null hypothesis is accepted</em>
<em>Test the hypothesis that the true mean quiz score is 8.0 against the alternative that it is not greater than 8.0</em>
<em></em>
 
        
             
        
        
        
Answer:
around 4.52. 
Fraction form: 
Step-by-step explanation:
Brainliest?