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). The linear model for this data is 
where x is the cost of advertising (in thousands of dollars) and y is number of products sold (in thousands). Use this model to predict the number of products sold (in thousands) if the cost of advertising is $8000. 
A. 22,375,800 products sold
B. 84,820 products sold
C. 78,120 products sold
D. 75,120 products sold
Answer: C
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Tell whether the angle is acute, right, obtuse, or straight.
A. Acute B. Right C. Straight D. Obtuse
Find the future value of the annuity due. Round to the nearest cent.Payments of $2500 made at the beginning of each semiannual period for 15 years at 8% compounded semiannually
A. $129,915.72 B. $137,712.34 C. $73,310.71 D. $145,820.84
Provide the appropriate response.Determine the number of real and imaginary solutions of the equation x9 = 1.
A. 9 real; 0 imaginary B. 1 real; 0 imaginary C. 0 real; 9 imaginary D. 1 real; 8 imaginary
If the sides of 
have measures a = 3, b = 4, and c = 5, then the measure of 
(the angle opposite the side of length c) is 90°.
Answer the following statement true (T) or false (F)