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%
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%
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