Subtract. Simplify, if possible. - 

A. 3
B. 12
C. 7
D. 3


Answer: D

Mathematics

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Solve the inequality. Graph the solution set and write it in interval notation.-4 ? 

A. (-?-24)

B. (-24?)

C. (-?-24]

D. [-24?)

Mathematics

Use the rules for exponents to rewrite the expression and then evaluate the new expression. (72)-1 

A.
B. - 
C. -14
D. -49

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Solve.A polygon with n sides has D diagonals, where D is given by the function D(n) =  . Find the number of sides n if  54 ? D ? 135.

A. {n|12 ? n ? 18} B. {n|11 ? n ? 19} C. {n|13 ? n ? 18} D. {n|10 ? n ? 19}

Mathematics

Solve and graph the solutions. < 8

A.

B.

C.

D.

Mathematics