Simplify the expression. Write the result using positive exponents only.(-5)-4
A. - 
B. 625
C. -625
D. 
Answer: D
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Find percent notation.0.801
A. 0.801% B. 80.1% C. 801% D. 0.0801%
Translate each graph to an inequality using the variable x.
A. x > -5.2 B. x ? -5.2 C. x ? -5.2 D. x < -5.2
Determine the probability using a probability tree.A bent coin lands tails up with a probability 0.8. If the coin is flipped three times, determine P(at least one tail appears in the three flips).
A. 0.008 B. 0.992 C. 0.032 D. 0.488
Solve the problem.A survey of senior citizens at a doctor's office shows that 45% take blood pressure-lowering medication, 48% take cholesterol-lowering medication, and 7% take both medications. What is the probability that a senior citizen takes either blood pressure-lowering or cholesterol-lowering medication? Express the answer as a percentage
A. 0% B. 4% C. 86% D. 100%