

1. 
The price of a computer system at an electronics store is $1099. Determine the percent of change in price if the computer system sold for $1349 a month earlier. 


A. 
22.7% increase 
B. 
18.5% increase 


C. 
18.5% decrease 
D. 
22.7% decrease 


Hint 


2. 
The average price for gasoline rose from $2.85 to $3.24 in one day. Find the percent increase. 


A. 
39% 
B. 
13.7% 


C. 
21.4% 
D. 
12% 


Hint 


3. 
Al's Quick Mart sells milk for $1.99 per gallon, but they used to sell it for $2.79. What is the percent decrease in the price? 


A. 
39.70% 
B. 
71.30% 


C. 
28.70% 
D. 
40.20% 


Hint 


4. 
At Central High School, the number of sophomores who rode the school bus decreased from 212 at the beginning of the school year to 94 at the end of the school year. Find the percent decrease for sophomores riding the school bus. 


A. 
55.70% 
B. 
79.70% 


C. 
125.50% 
D. 
44.30% 


Hint 


5. 
In May, there were 157 people living in Kristin's neighborhood. By August, the population had increased 21%. How many people were in Kristin's neighborhood by August? 


A. 
330 
B. 
190 


C. 
33 
D. 
1900 


Hint 


