Find the equation of the least squares line.In the table below, x represents the number of years since 2000 and y represents annual sales (in thousands of dollars) for a clothing company. 
A. y = 2.61x + 25.9
B. y = 4.37x + 21.7
C. y = 3.31x + 23.8
D. y = 5.18x + 20.6
Answer: C
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A. 15
B. 93
C. 23
D. 18
and 
, what is the value of w when
Evaluate the expression.84
A. 64 B. 512 C. 32 D. 4096
For the given Cartesian equation, write an equivalent polar equation.x2 + y2 = 144
A. r = 12 cos ? B. r = 12 C. r = 144 D. r = 12 sin ?
Solve the problem.Trader Tower stands at 2890 feet high. Exchange Emporium is 884 feet tall. How much taller is Trader Tower than Exchange Emporium?
A. -2006 feet B. -3774 feet C. 3774 feet D. 2006 feet