Find the median for the set of data values.The test scores of seven students: 1, 5, 10, 21, 30, 30, 49
A. 25.5
B. 30
C. 10
D. 21
Answer: D
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Rewrite the following number using digits.Eight thousand, one hundred sixty-seven
A. 810,067 B. 800,167 C. 81,067 D. 8167
Sketch the graph of the function and find the domain and range.f(x) = x2 - 4
A. 
domain: {x|-? < x < ?}
range: {y|y ? -4}
B. 
domain: {x|-? < x < ?}
range: {y|y ? 4}
C. 
domain: {x|-? < x < ?}
range: {y|y ? 0}
D. 
domain: {x|-? < x < ?}
range: {y|y ? -4}
In business, equipment is often depreciated using the double declining-balance method. In this method, a piece of equipment with a life expectancy of N years, costing $C, will depreciate to a value of $V in n years, where n is given by the formula
?
?
If a computer that cost $42,000 has a life expectancy of 5 years and has depreciated to a value of $20,000, how old is it?
?
Please enter your answer as a number without the units, rounded to one decimal place.
Fill in the blank(s) with the appropriate word(s).
Perform the indicated operations.
A. - 
B. - 
C. - 
D. 