Solve the problem.A company's monthly sales, in thousands, is given by S(x, y) = 6x0.8y0.5, where x is the amount spent on newspaper advertising per month in thousands of dollars and y is the amount spent on radio advertising per month in thousands of dollars. Suppose the company currently spends $4000 on newspaper advertising per month and $2000 on radio advertising per month. What would be the effect on sales if the company increases the amount spent on newspaper advertising to $5000, while the amount spent on radio advertising remains constant?
A. Sales would increase by $6430.64.
B. Sales would increase by $39,932.74.
C. Sales would increase by $4919.97.
D. Sales would decrease by $492.00.
Answer: B
Mathematics
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, 
, and 
A. 
B. 
C. 
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A. 
B. 
C. 
D. 
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Determine whether or not the function is one-to-one.f(x) = 4x2 + x
A. No B. Yes
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