How many subsets and proper subsets are in the given set?the set of words describing the colors on a stoplight

A. 16, 15
B. 8, 7
C. 7, 8
D. 15, 16

Answer: B

Mathematics

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Solve the equation by completing the square.9x2 + 2x - 7 = 0

A. , 0
B. , -1
C. , -1
D. , 1

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Find the part.88% of 185 miles

A. 162.8 miles B. 16,280 miles C. 1628 miles D. 16.28 miles

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Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.9y2 + 18y + 8

A. prime B. (9y + 4)(y + 2) C. (3y - 4)(3y - 2) D. (3y + 4)(3y + 2)

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Add or subtract. + 

A. x
B.
C.
D.

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Mathematics