Solve.How long will it take for the population of a certain country to triple if its annual growth rate is 7%? (Round to the nearest year.)
A. 16 yr
B. 7 yr
C. 1 yr
D. 43 yr
Answer: A
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Solve problems using a calculator.To determine the thickness of a sheet of metal, six batches of 8 sheets each are measured with a digital micrometer. The thickness of each of the six batches of 8 is 0.3932, 0.3929, 0.3922, 0.3925, 0.3930, and 0.3924 mm. Find the average thickness of a single sheet of metal. (Round to the nearest ten-thousandth of a millimeter, if necessary.)
A. 0.0490 mm B. 0.0491 mm C. 0.3929 mm D. 0.3927 mm
Solve.A house recently sold for $142,390. The commission rate on the sale is 5.5%. If a real estate agent is to receive 60% of the commission, find the amount received by the agent.
A. $46,988.70 B. $4,698.87 C. $46.99 D. $469.89
Provide an appropriate response.A proper fraction has the form 
. What is the largest possible number that x can be?
A. 21 B. 20 C. 22 D. 10.5
Use the Comparison Test to determine if the series converges or diverges.
A. converges B. diverges