Solve the problem.A certain radioactive isotope has a half-life of approximately 950 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 75% of that amount?
A. 238 years
B. 1900 years
C. 319 years
D. 394 years
Answer: D
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Solve the problem.The pharmacist mixed 7.53 grams of one drug with 3.618 grams of another drug. What was the weight of the mixture?
A. 11.148 g B. 15.06 g C. 12.248 g D. 7.236 g
Rewrite the statement so the inequality symbol points in the opposite direction and the new statement has the same meaning as the original.-16 ? 18
A. -16 < 18 B. 18 ? -16 C. -16 ? 18 D. 18 ? -16
Solve the problem.As part of her fitness training, Alice plans to cycle 27 miles today. So far, she has cycled 24 miles. What fraction of the total miles for the day is represented by 24 miles? Write your answer in lowest terms.
A. 
B. 
C. 
D. 
Provide an appropriate response.If an initial investment of $4000 grows to $5718 in six years, find the nominal rate of interest, compounded quarterly, that was earned by the money.
Fill in the blank(s) with the appropriate word(s).