End-of-Chapter Skill Check Review

1. Find the sale price:

$45 jeans; 20% discount

The Apple iPad and the Samsung Galaxy Tab are both on sale. The iPad costs $300 and the Galaxy Tab costs $250. If you have a coupon that gives you 10% off the original price, which tablet would be the better buy?

• Apple iPad

• Samsung Galaxy

Some friends went to dinner at Outback. The cost of their meal, including drinks, was $75. They wanted to leave a tip of 20% for the excellent service they received. What is the total amount, including the tip, that they should pay for their dinner?

Mark wants to buy a Lamborghini Huracan with a price of $200,000. However, he needs to consider the sales tax, which is 7% in his state. How much money will Mark need to pay, including sales tax, to purchase the Lamborghini?

Sarah wants to buy a virtual reality (VR) set that costs $300. The store is offering a discount of 15% on all VR sets. How much will Sarah pay if she decides to buy the VR set with the discount?

What is the original price of an Xbox if you bought it on a 20% off sale for $259.99? Round to the nearest hundredth.

6. A pair of On Clouds were on sale for $140. This week it was marked up 20%. What is the new price?

9. Sam is buying Apple Airpods that normally sell for $249. The state sales tax rate is 5%. He also has a coupon for 10% off. What is the total cost of the Airpods including the discount and sales tax?

Calculate the simple interest.

$428, 3%, 5 years  

Find the simple interest.

$500, 2.5%, 8 months