Coffee, tea and some soft drinks contain the drug caffeine. One hour after ingestion, 75% of the original amount of caffeine remains. At the end of
each hour after that, 75% of the amount at the beginning of the hour
remains. Suppose a person consumes 40 milligrams of caffeine. What is the
rate of decay per hour that the caffeine is absorbed?

Kerion has a beaded necklace business. she can make 12 necklaces is 2 hours. how long will it take her to make 9 necklaces?

Identify the statement below as either descriptive or inferential statistics. upper a certain website sold an average of 117 books per day last week. is the statement an example of descriptive or inferential statistics? a. it is an example of descriptive statistics because it uses a sample to make a claim about a population. b. it is an example of inferential statistics because it uses a sample to make a claim about a population. c. it is an example of inferential statistics because it summarizes the information in a sample. d. it is an example of descriptive statistics because it summarizes the information in a sample.

Atriangle has side lengths of x, x+11, and 3x+5. what is the perimeter?