Proportional Reasoning

Mrs. Dziuba bought a dress at a 15%-off sale that was originally priced at $50.  Before tax was added, how much money did Mrs. Dziuba save by buying the dress on sale?

• $5
• $7.50
• $15
• $750

Diego answered 32 questions on an exam correctly and received a grade of 80%.  How many questions were on the test?

• 26
• 25
• 40
• 32

Kelsey takes her friend out to dinner and the total cost of the meal is $124.50.  The restaurant then added the 20% tip to the cost of the meal.  How much money was added for the tip?

• $24.90
• $149.40
• $12.45
• $6.23

Daniel was doing research for his project to find where people think they use the most water during the day.  He displayed the results in a circle graph.  His research showed that 32 people felt that they use most of their water while in the shower.  What is the total number of people who felt they used most of their water by washing clothes (rounded to the nearest tenth)?

• 190.4 people
• 41.3 people
• 10.1
• 23.5

It is wedding season and the store needs to increase the price of all retail by 8%.  If the dress is $102, what will be the price of this dress after the markup?

• $110.16
• $8.16
• $93.84
• $102

Kiara wants to buy a new IPAD that costs $400.  She has already saved 15% of the money.  How much additional money does Kiara need to save to have enough money to buy her IPAD?

• $385
• $460
• $60
• $340

In 1990 there were 1,053 St. Louis Cardinals.  By 1991 that number had decreased by 452.  what is the percent of decrease of St. Louis Cardinals?  Round your answer to the nearest hundredth. 

• 42.92%
• 57.1%
• 40.28%
• 68.1%

Beatriz wanted to know the number of people who take the highway to work in Virginia.  In 2002 there were 8,272 people and by 2008, there were 12,360 people.  What was the percent of increase in the number of people who take the highway to work?

• 35%
• 33%
• 54%
• 49%

A $300 certificate of deposit has a simple interest annual rate of 4.25%.   What is the value of the certificate after 5 years?

• $363.75
• $1,411.76
• $63.75
• $1,711.76

How much simple interest will accrue over 2 years on a loan of $15,372 with an annual interest rate of 4.2%?

• $1,291.25
• $90,456.24
• $2,382
• $129,124.80