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 $15,000.
A. 97.65
B. 94.65
C. 41,905.8
D. 104.35
Answer: A
Mathematics
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Solve the problem.The recipe for a chocolate chip cake calls for 
pound of chocolate chips. If a bakery wants to make 20 cakes, how many pounds of chocolate chips will they need?
A. 20 pounds B. 5 pounds C. 16 pounds D. 4 pounds
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Multiply. Express the product in lowest terms.
? 
A. 
B. 14z
C. 
D. 
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Expand the expression using the Binomial Theorem.(4b2 + 2)5
A. 1024b5 + 2560b4 + 2560b3 + 1280b2 + 320b + 32 B. 1024b10 + 320b8 + 1280b6 + 1280b4 + 320b2 + 32 C. 1024b10 + 2560b9 + 2560b8 + 1280b7 + 320b6 + 32 D. 1024b10 + 2560b8 + 2560b6 + 1280b4 + 320b2 + 32
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Determine whether the following is a difference of squares.9x2 - 36y2
A. No B. Yes
Mathematics