Solve the inequality and give the solution in interval notation.-21r - 15 ? -3(6r + 7)

A. (-?, 2]
B. (-?, 2)
C. [2, ?)
D. (2, ?)


Answer: C

Mathematics

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Provide an appropriate response.Determine whether the wording "calculating the square of a number and then adding four to the result" is a representation of a function. Explain your answer.

What will be an ideal response?

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A. ? B. does not exist C. -? D. -2

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The graphs show the sales of two companies competing for market share. Use the graphs to answer the question.During which years were the sales of Company B greater than or equal to 1.8 million items?

A. 1990, 1991, 1992 B. 1994, 1995 C. 1993, 1994, 1995 D. 1990, 1991, 1992, 1993

Mathematics