Answer:
C expense meaning cost money
 
        
                    
             
        
        
        
The formula for calculating the Confidence Interval is as
follows:
Confidence Interval = x +- (z*s)/√N
Where:
x = mean = 10.36
z = taken from standard normal distribution table based on 95%
confidence level = 1.96
s = standard deviation = 5.31
N = sample size = 30
Substituting know values on the equation:
Confidence Interval = 10.36 +- ( 1.96 * 5.31) / √30
Confidence Interval = 8.46 and 12.26
Hence the bill of lunch orders ranges from 8.46 to 12.26.
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Answer: $770.22
Explanation:
If she makes equal contributions then those would be annuities. The $9,000 she wants to have will be the future value of the amount currently in her account and the annuity. 
9,000 = 5,000 ( 1 + r) ^ n + ( annuity * future value interest factor of an annuity, 9%,  3 years)
9,000 = 5,000 ( 1 + 9%) ^ 3 + ( Annuity * 3.2781)
9,000 = 6,475.145 + 3.2781 * Annuity
Annuity  = (9,000 - 6,475.145) / 3.2781
Annuity = $770.22
 
        
             
        
        
        
Answer: Finance, purchasing, accounting, suppying
Explanation:
Retailing is known as a sub middleman in business that buys from the wholesaler and sells to the consumer in smaller quantity not as big as the wholesaler.
The following are activities of the retailer, although it might not be all followed by many retailers but depending on their ability and understanding
-Finance
-Purchasing
-Accounting
-Management Information System
-Supply management including warehouse and distribution management.