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
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Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 0.1 B. -0.2 C. 1.5 D. 0.2
Write the numeral as a Roman numeral.842
A. CCMXLII B. DCCCLXII C. DCCCXLII D. CMMXLII
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
Perform the indicated operations. Reduce answers to lowest terms and write any improper fractions as whole or mixed numbers.
- 
A. 
B. 
C. 
D. 