Find the indicated rate.Mara can type 1020 words in 
hour (20 minutes). How many words per minute can she type?
A. 17 words/minute
B. 340 words/minute
C. 153 words/minute
D. 51 words/minute
Answer: D
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Find the product.(-7)(-6)(-4)
A. -178 B. -168 C. -68 D. 168
Solve the equation.
= 2
A. 
B. 
C. 
D. 
Solve the problem.An ordinary die is tossed. What are the odds in favor of the die showing a number less than 3?
A. 1 to 3 B. 1 to 1 C. 1 to 2 D. 2 to 1
Solve the problem.Suppose, for a certain drug, the following results were obtained: Immediately after the drug was administered, the concentration was 4 milligrams per milliliter. Twelve hours later, the concentration had dropped to 1.6 milligrams per milliliter. The concentration decays exponentially according to the law 
Determine the value of k for this drug.
A. k = 0.0764 B. k = -1.4100 C. k = -0.0764 D. k = -0.0098