The best way to study is to attempt to do these exercises on your own before looking at the answers.
Suppose the deal of the day at Amazon.com is a lady's watch being sold for $49.99. If the list price is $125, what is the rate of discount? If the buyer must pay 6% sales tax plus $5.97 for shipping and handling, what will be the final cost to the buyer?
While on a diet, a woman's weight goes from 160 to 130 pounds. Express her weight loss as a percent.
Suppose the woman in the previous exercise gained back all of the weight she had lost (an all too common occurrence). Express her weight gain as a percent.
The invoice price of a car is the price the car dealer pays to buy the car from the manufacturer. The invoice price represents the cost of making the car plus a markup (the manufacturer's profit). Suppose the invoice price for a Chevy Malibu is $21,636. What does it cost to make this car if the manufacturer's markup is 10%?
A car's sticker price is the manufacturer's suggested retail price (MSRP). If the invoice price for a Chevy Malibu is $21,636 and the sticker price is $22,735, what is the dealer's markup rate?
Suppose the invoice price for a Chevy Malibu is $21,636 and the sticker price is $22,735. If the car dealer is willing to sell the car at 3.5% off the sticker price, what is the sale price and what is the dealer's markup?
The number of traffic fatalities in Kentucky in 2007 was 864. In 2008 the number of traffic fatalities went down 4.51% (compared to 2007) and in 2009, the number of traffic fatalities went down again (by 4.12% compared to 2008). How many traffic fatalities (rounded to the nearest integer) were there in 2008 and 2009? What was the percent change in traffic fatalities from 2007 to 2009?
Kentucky has a 6% sales tax. However, food and some other things are not subject to this sales tax. Suppose a man goes on a Wal-Mart run and buys a variety of items. If his purchases added up to $143.87 and he was charged an additional $3.12 for sales tax, find the total cost of the taxable items he purchased and the total cost of the non-taxable items he purchased.
A newsperson reports that last year's rainfall (a total of 45 inches) was 15% above average. What is the average annual rainfall?
