The Geology Club is taking a trip to Hawaii to explore volcanos. Forty percent of the dlub can make the trip which is 16 members. Use this information to complete the table below by determining the number of students in the club that correspond to the percentages given. Hint: Use doubling and halving to ease your computations. Percent of Students in the Club 0% 20% 40% 60% 80% 100% Number of Members How many members are in the Geology club in total? members members How many Geology Club members did not attend the Hawaii trip? 0% What percent of Geology Club members did not attend the Hawaii trip?

In mid-2016, the world's population was about 7.4 billion people. The population of the United States was about 324 million people.What percent of the world's population was the U.S. population? Round the percentage to one decimal place. %How many more people lived in the entire world than in the U.S. in mid-2016? Round your result to the nearest million and then write it with the number word "million" instead of writing out zeros.  __________ million more people lived in the world than in the U.S. in mid-2016.How many times larger was the world population than the U.S. population in mid-2016. Round your answer to the nearest whole number.The world population was _______  times larger than the U.S. population in mid-2016.

In 2011, there were 3552 deaths from heroin overdose.    What was the % increase in deaths from heroin overdose from 2011 to 2015? What was the % increase per year?

Last year a professional basketball team won 60 games.  This year the team won 9 fewer games than it won last year.  What is the percent decreasee in the number of games the team won?