Solve the problem.The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands). By using linear regression, the following function is obtained: 
where x is the cost of advertising (in thousands of dollars) and y is number of products sold (in thousands). Use this function to predict the number of products sold if the cost of advertising is $7000.
A. 82.03
B. 72.33
C. 19,585.8
D. 75.33
Answer: D
Mathematics
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Solve the equation.y - 1.2 = 2.3
A. 3.5 B. 1.3 C. 3.3 D. 1.1
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Use the change of base formula to approximate the logarithm to four decimal places.log
59.3
A. 3.9266 B. 1.9633 C. 0.2547 D. 0.4515
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Convert.7.8 tons to pounds
A. 15,600 lb B. 124.8 lb C. 7800 lb D. 1560 lb
Mathematics
Find an equation for the line with the given properties.Parallel to the line -4x - y = 6; containing the point (0, 0)
A. y = 
x
B. y = - 
x
C. y = -4x
D. y = 
x + 6
Mathematics