Answer:

Step-by-step explanation:
Based on the given conditions, formulate: 
Convert decimal to fraction:
Divide a fraction by multiplying its reciprocal:
Cross out the common factor: 
Calculate the product or quotient: 
get the result: 
Answer: 
Answer:
$144
Step-by-step explanation:
120$
12+12= $24
120+24= 144
You use the lower case letter s for the sample standard deviation
You use the greek letter sigma (written as

) for the population standard deviation
Answer:
About 14 in the exact value is 14.38 smthn