Collect like terms.-15y - 6x - 9x

A. -15y - 15x
B. -15y - 3x
C. -15y + 3x
D. -30xy


Answer: A

Mathematics

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Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.The five sales people at Southwest Appliances earned commissions last year of     and $32,000. Find the mean commission.

A. $27,550 B. $29,000 C. $31,900 D. $30,450

Mathematics

Add.5.164 + (-7.605)

A. -12.769 B. -12.669 C. 2.441 D. -2.441

Mathematics

Add or subtract and write the resulting polynomial in descending order of degree. + 

A. 3x3 + x2 + x - 
B. 3x3 + x2 + x - 
C. 3x3 - x2 + x - 
D. 2x3 + x2 + x - 

Mathematics

Write the following in interval notation.{x| -7 ? x < 5}

A. [-7, 5] B. [-7, 5) C. (-7, 5) D. (-7, 5]

Mathematics