a.

b.

c.

d.

e.

f.

Express each of the following in three forms: as a reduced fraction, as a decimal, and as a percentage.

Percents, Decimals, and Fractions

Chapter 3 Page 1

a.

b.

A=$93,000 is the median price of a single-family home in Ankeny, Iowa in 2010 and B=$380,000 is the median price of a single-family home in Juno, Alaska in 2010.

c.

Compare the following numbers by: finding the ration of A to B, finding the ratio of B to A, and complete the sentence “A is _______ percent of B.”

Ratio and Percent

Chapter 3 Page 2

Find the absolute change and relative change if the population in the United States increased from 249 million in 1990 to 308 million in 2010.

Absolute and Relative Change

Chapter 3 Page 3

Find the absolute difference and relative difference if the cost of a 2012 Toyota Corolla is $18,500 compared to the 2012 Nissan Maxima which costs $32,000.

Absolute and Relative Difference

Chapter 3 Page 4

Your savings account increased from 0.5% to 1.3%. Describe the absolute change in terms of percentage points and as a relative change.

Percent Change

Chapter 3 Page 5

The number of housing foreclosures in 2008 was 3.98 million, up 81% over 2007. How many foreclosures were there in 2007?

Solving with Percents

Chapter 3 Page 6

a.

b.

Do the following operations without a calculator. Express your answer in scientific notation and round your answer to one decimal place.

Arithmetic with Scientific Notation

Chapter 3 Page 7

Americans consume an estimated 7.6 billion pounds of candy (excluding chewing gum) per year. Express the quantity in terms of pounds per person per month. (Use a population 310 million).

Putting Numbers in Perspective

Chapter 3 Page 8