List the real zeros of P(x).
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A) –2, 0, 1 B) –2, 1 C) 0 D) 1
B) –2, 1
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Use reference angles to find the exact value of the expression. Do not use a calculator.cot 
A. 
B. 
C. - 
D. -
Solve.David recently switched to a long distance phone company which charges a monthly fee of $5.45 plus $0.06 per minute. A linear function that expresses the monthly bill B as a function of minutes used m is 
What are the independent and dependent variables?
A. The independent variable is the customer, and the dependent variable is B. B. The independent variable is B, and the dependent variable is m. C. The independent variable is 5.45, and the dependent variable is 0.06. D. The independent variable is m, and the dependent variable is B.
Find the sum using a number line.-5 + 2
A. -7 B. 7 C. 3 D. -3
Solve the problem.The cost of manufacturing clocks is given by C(x) = 68 + 21x - x2. Also, it is known that in t hours the number of clocks that can be produced is given by x = 2t, where 
Express C as a function of t.
A. C(t) = 68 + 42t - 4t B. C(t) = 68 + 42t - 4t2 C. C(t) = 68 + 21t + t2 D. C(t) = 68 + 21t - 2