The answer to your question is,
Periodically test food for illness causing microorganisms.
-Mabel <3
 
        
                    
             
        
        
        
The correct answer is plumbing
        
                    
             
        
        
        
Answer:
$17,163.86
Explanation:
to calculate how much J&J Enterprises will receive, we need to determine the present value of one bond:
present value = future value / (1 + interest rate)ⁿ
- future value = face value = $1,000
- interest rate = 8%
- n = 20 years
present value = $1,000 / (1 + 8%)²⁰ = $1,000 / 1.08²⁰ = $1,000 / 4.66 = $214.55 per bond x 80 bonds = $17,163.86
 
        
             
        
        
        
The morality, molality, and mole fraction of NaOH is mathematically given as
- morality= 4 ppm
- molality=0.7936m
- x1 = 0.152
What are the morality, molality, and mole fraction of NaOH?
Question Parameters:
A solution was made by dissolving 800. 0 g of NaOH in 25,200 g of water.
Generally, the equation for the Molality   is mathematically given as
molality = (mass / molar mass) x (1/ weight of solvent kg)
Therefore
M= (800 /40) x (1 /25.2)
M=0.7936m
Therefore
m= 10 x 18 / 1000
m= 0.18
Hence
x1 = 0.18 - 0.18 x1
1.18 x1 = 0.18
x1 = 0.152
Where the mole fraction is x1 = 0.152 The mass is
m= (800 / 800 + 2000) x 1000 
m= 28.57 %
Hence the morality
molality = mg /L 
molality= 8000 x 10^-3 / 2 L 
morality= 4 ppm
In conclusion, the morality, molality, and mole fraction of NaOH are given respectively as
morality= 4 ppm
molality=0.7936m
x1 = 0.152
Read more about Molarity
brainly.com/question/9149034
 
        
             
        
        
        
The opportunity cost of studying economics for one hour in this context would be: <span>Watching two half-hour TV sitcoms
Opportunity cost refers to something that you have to sacrifice everytime one alternative is chosen. When the time is spent to study economics, the time available for you to watch tv will be gone.</span>