1.54% of the college students drive to school and 25% takes a bus to school, the rest of the students walk or ride a bike. What percentage walks or rides a bike? ______________

2.Your computer is now outdated. You bought it 3 years ago for $850. Today you can sale the computer for $225 because you are going to need a more up to date model for class work. Describe the absolute and relative change in the computer's value.

Absolute change________________Relative change___________________

3.You will have to purchase a bicycle so that you can get to school because it is too far to walk and there is a bike trail you can take to get to the campus. The bike has a retail (pre-tax) value of $360. The local sales tax rate is 7.0%. What is the final cost of the bike? _____________________

4.You are going to be taking a physical education course - Fit for Life and you realize that you will be either walking or running a lot in the course so you will need new tennis shoes. The final cost of your new shoes is $84.72. The local sales tax rate is 7.75%. What was the retail (pre-tax) price of the shoes?

________________________

5.The 2650 women undergraduates at the college comprise 56% of all undergraduates. How many undergraduates attend the college? __________________

6.The college cafeteria uses 10,000 pounds of fruit every week. Express this quantity in terms of pounds per person per day (7 days a week). (The cafeteria serves approximately 2500 students per day)_________

7.In one of your Political Science courses there are 50 Democrats, 38 Republicans, and 12 Independents. Of the 25 women in the class 22 are Democrats and 3 are Republicans. Round all answers to 1 decimal places.

a) What percentage of the Democratic and Republicans students are Republican women? ____________

b) Among the women in the class, what is the percentage of Republican? ____________

c) Among the Republicans in the class, what is the percentage of women?____________

d) What percentage of the Democratic and Republicans students are Republican men? ____________

e) Among all the men in the class, what is the percentage of Republican? ____________

f) Among the Republicans in the class, what is the percentage of men?____________

8. In your CIS 110 class Intro to Computer Class you learn that in the 1980's a micro-computer had a memory of 64 kilobytes. Today's computer may have 8 gigabytes of memory. Is the memory of today's computer ten, hundreds, or thousands of times as large as the old computer's memory?___________

A kilobyte is a thousand = 10³ bytes, usually abbreviated KB.

A megabyte is a million = 10⁶ bytes, usually abbreviated MB or meg

A gigabyte is a billion = 10⁹ bytes, usually abbreviated GB or gig.

A terabyte is a trillion = 10¹² bytes, usually abbreviated TB.

To find out how many megabytes are in a gigabyte, we divide:

There are 1000 megabytes in a gigabyte. Similarly, we calculate that there are a million megabytes in a terabyte.

9. You also learn in class that one kilobyte of computer memory will hold about 2/3 of a page of typical text (without formatting). A typical book has about 400 pages. How many such books can a 9-gig flash drive hold? _______________

10.In your BIO 111 course you learn that human hair can vary in diameter, but one estimate of the average diameter is 50 microns or 50 x 10^-6 meter. How many 10-nanometer (is 10 x 10^-9) particles could be stacked across the diameter of a human hair? _________________

11. You also discussed in BIO 111 that there are approximately 3.999 million births per year in the United State. Express this quantity in births per minute. ___________________

12.You learned that the gestation period of humans (266 days) is ____percent longer than the gestation period of sheep (152 days).

13.In your Economics course you learned that as of August 2017, the national debt was about 19.9 trillion dollars, and there were about 326 million people in the United States. The national debt is not just an abstract figure. The American people actually owe it. Determine how much each person in the United States owes. Round your answer to the nearest$100. Express your numbers in scientific notation while doing your calculation. ________________

14. In your Sociology class you learned that presently in 2017 there are approximately 2.2 million prisoners. How many arenas with a capacity of 50,000 would this population fill? ________________

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