Multiply and simplify. Assume that all variables represent positive real numbers.(4 - 7)2

A. 16x + 56 + 49
B. 16x - 56 + 49
C. 16x + 7
D. 16x - 49


Answer: B

Mathematics

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Write the numeral as a Roman numeral.842

A. CCMXLII B. DCCCLXII C. DCCCXLII D. CMMXLII

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Solve the problem.A firm estimates that it will sell N units of a product after spending x dollars on advertising, where  and x is in thousands of dollars. By sketching the function determine how much the company should spend in order to maximize sales, and find the maximum sales.

A. The company should spend $250,000. Maximum sales are 187,488 units B. The company should spend $500,000. Maximum sales are 187,488 units C. The company should spend $500,000. Maximum sales are 62,488 units D. The company should spend $250,000. Maximum sales are 62,488 units

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Perform the indicated operations. Reduce answers to lowest terms and write any improper fractions as whole or mixed numbers. - 

A.
B.
C.  
D.

Mathematics