Perform the indicated operation. Simplify the result, if possible.
? 
A. 
B. 4(x + 4)
C. 
D. 
Answer: D
Mathematics
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Provide an appropriate response.What does the graph of the equation 
look like?
A. A sphere B. A plane C. A cylinder D. A line
Mathematics
Simplify.
A. y
B. - 
C. - 
D. -y
Mathematics
Give an appropriate answer.Given the function f(x, y) and the positive number ? as in the formal definition of a limit, find a positive number ? as in the definition that insures 
< ?.f(x, y) = (1 + cos x)(x + y); ? = 0.16
What will be an ideal response?
Mathematics
Solve the problem.Thompson's Hardware spent $15,670 this year on advertising alone. If total sales were $790,100, what percent of total sales was spent on advertising? Round to the nearest tenth of a percent, if necessary.
A. 504% B. 0.2% C. 50.4% D. 2%
Mathematics