Solve the problem.The height of a box is 6 inches. Its length is 7 inches more than its width. Find the length if the volume is 180 cubic inches.
A. 6 in.
B. 3 in.
C. 10 in.
D. 30 in.
Answer: C
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Solve the problem.Find the area. 
a = 76 mb = 96 m
A. 627,800 m2 B. 9200 m2 C. 5800 m2 D. 7300 m2
Total personal income in the U.S. (in billions of dollars) for selected years from 1960 to 2002 is given in the following table.
?
Year
1960
1970
1980
1990
2000
2002
Personal income
384.69
446.97
447.11
494.36
530.20
532.30
?
?
These data can be modeled by 
, where x is the number of years past 1960. Use the data to find the average rate of change from 2000 to 2002, which can be used to approximate the rate of change in 2002. Round your answer to the nearest ten million dollar.
?
A. $3.20 billion per year
B. $2.83 billion per year
C. $3.74 billion per year
D. $3.84 billion per year
E. $3.69 billion per year
Graph the linear function. Give the domain and range.f(x) = 3x + 3
A. Domain: (-?, ?)
Range: (-?, ?)
B. Domain: (-?, ?)
Range: (-?, ?)
Establish the identity.(sec u - tan u)(sec u + tan u) = 1
What will be an ideal response?